New Workbench

 

Yes, four days old, and already cluttered....

It was on sale at Home Depot with free delivery, so I went ahead and ordered one. A trip to Harbor Freight netted me a belt/disc sander, and bench grinder, and finally, a decent vise. 

The WEN drill press arrived Friday morning, and was a snap to assemble. The other drill press I had was more of a toy. It would do wood, plastic, and aluminum OK, but steel? Uh....no. It just didn't have enough torque to go through more than 1/8" of the stuff.

The belt/disc sander and bench grinder are Very Nice Things to have when fabricating, and nothing beats a wire wheel in a bench grinder for cleaning bolts.

The bench vise replaces the on I left in Long Beach like a dummy. I had the bench height adjusted where I like it, and then I put the casters on it, so now I have to lower it 2" to what I like.

And of course, a nice light over it. 

Remember the "Electrical Board" I built for the grandsons? They LOVE it!

Definitely a hit, and I hear murmurs of his cousins wanting one now....

They thought it was MAGIC when I hooked a coil I wound to the voltmeter and ran a magnet through it. 

ELECTRICITY FROM NOTHING!

They're having great fun learning new things, and getting patient, clear explanations of how it happens.

I love this picture for some reason...

 

And this is where I'm currently at.

Pulled the driver's side headlight bucket out to get at the RUST that was lurking under it. This has been completely scrubbed with a brush using my Magic Mix of Simple Green, Denatured Alcohol, water, and a good squirt of Dish Soap. 

Then I went over it again with the same mix and green Scotch-Brite. That really got it clean. I even managed to get a good portion of the really stained areas back to being white. Now I'm working on the rusty battery shelf, and I have to pull the mounting bracket for the Front Strut Rod ( a 'Lateral Locating Link' in tech terms) out of the car to sand blast. Which means I have to take the other one out, too, or the finishes won't match. Not hard to do, and it has to be done to change the front sway bar, so I'll swap out the front bar when I put it back together.

 The black shelf is the battery support, which I've already sanded and put a Rust Converter product on. The hugely rusty bracket is the one that has to come off.

And we had some really interesting clouds a couple of weeks ago.

Hope you all have a very Blessed and Joyous Easter.

Rejoice! He Is Risen!

Still Here, Busy As All Get-Out!

 I just haven't felt like posting. When I photograph and post things, it takes me away from doing things, and that can be a bit annoying....

Fed the trees and shrubs, checked (and repaired) the drip system for any damage sustained over the Winter, and got the hoses and sprinklers out and ready-to-go. If anybody wants some "Guaranteed To Germinate" Maple seeds, let me know. I've got a two gallon plastic bucket full of them!

Finally broke down and bought a decent workbench. It's a "Husky" from Home Depot. It was on sale, with free delivery. I put locking casters on all four legs so I can maneuver it around when required. It's set up, and I'm going to hang a LED shop light over it tomorrow, along with bolting down my new vise. Annnnd the new drill press is arriving Friday. Not sure if I'll bolt down the bench grinder yet. I'll wire wheel a bunch of bolts and see if it moves around any.

The Fisher RS-2010 is drawing excessive current. When I powered it up in the past, it would draw around 3 Amps at 120 VAC. Now that I've rebuilt the Power Amplifier Board it draws SIX Amps at about 25 VAC, indicating I bollixed something up, so I stepped back for a few days. I'm pretty sure I know what it is, as there was some ambiguity in getting two of the transistors in each channel properly oriented.  Not the first time I've goofed, and it won't be the last!

Work is proceeding at an accelerating pace on the Supra. I'll post some pix in the next day or two.

80* Last Week, and Snowing Tonight....

 Just gotta love Springtime in the Rockies!  

We've received a bit over an inch of rain this week, accompanied by daytime temps of 30~50*, nighttime temps in the 20~30* range, and a lot of wind.

Going to be warming up all this week, so I'll be back in the garage.

Results of the Fisher Smoke Test are negative; NO smoke was released!

More to come....

The Fisher Saga Pre-Test Tales

 The Last Transistor, and associated "extra" components, has been replaced. I verified my work with a checklist, and it's very close to being powered up. I have some tidying up to do, along with cleaning the soldering flux off the back of the PA Board, and I'll do that tomorrow with fresh eyes.

And I finally bought a decent workbench for the garage. Now I have a place to mount a proper bench vise, belt/disc sander, bench grinder, and a drill press.

 

Stand by for pix!

Seventy-Eight Degrees!

 And for my friend SiG, 19% humidity!

 Just gorgeous today, and I'm out in the garage painting some small parts, and dropping the exhaust manifold off the Supra so I can get at some bolts located behind it. Good thing I decided to do this, as three of the seven bolts were almost "Finger Loose", and the two end ports were blowing exhaust out. The other four bolts came out very easily, and were soon to be loose. The manifold is mounted on studs screwed into the cylinder head, and "Prevailing Torque" nuts hold it to the studs. All seven studs came out, but the nuts stayed on them. I'm having a difficult time getting the nuts off the studs, and might just buy new ones, as they're still available from Toyota.

The infamous Last Transistor for the Fisher RS-2010 got here yesterday, so I'll be installing those later today. I saved these two for last as they have an "extra" transistor (NOT on the schematic diagram) just "scabbed in there", and I still have to document what number transistor it is, and exactly how it's connected.

Hope you enjoy the upcoming weekend, as March will be going out next week accompanied by rain and snow here.

 Keep your head on a swivel, as with the warmer weather coming, things might get spicy....!

The Fisher Saga...The Last Transistor Is On The Way!

 

Yow, this receiver was a gen-you-ine PITA to source the parts for. There are two transistors in each of the two Power Amplifiers. They're what's called a Complementary Pair, which means one is a PNP type, and the other is an NPN type, and their characteristics are matched to each other.  There are several part numbers for each pair, -BUT- while I could easily find one of the pair, the other one was nowhere to be found for any of the suitable parts I was searching for. I was finally able to hook up with a forum member who had purchased a large number of these when they were still available, and after contacting him he agreed to sell me TEN of each type I needed.

So I now have enough of the correct parts to finish the Power Amplifiers, and have some spares for future use.

Happy Birthday to Ms. Swan

 

 She's 40 years old this month. I go by the door tag that says she was built in March, 1985, but I've never tried to dig deeper to see when she was built in March. Toyota could most likely tell, but they're not saying.

She has an interesting story.......

I bought her and drove her home on New Year's Eve, 2012, so I've really had her about 12 years and a few months. I looked at about a dozen of them, and all of them either had a  rod knock, rust holes you could put your fist through, trashed interiors that looked like they'd held raccoon fights, really bad body work, missing parts, or all of the above.

She was owned by the original purchaser for 27 years, and mostly had the typical maintenance a Toyota gets. She came with a shoe box full of receipts, so I was able to determine when some of the parts had been replaced, but I considered it a spotty record at best.

The original owners lived in Redlands, CA which is in San Bernardino County, which is a very dry, hot area, so NO RUST! They sold her to a single Mom who bought it as a bribe for her teenage son. If he finished High School, got his Driver's License, and a job, she would have given him the car and taken care of the maintenance, insurance, and licensing. Needless to say, that didn't happen, so she sold it to the guy I bought it from.

He said he'd bought it "To Restore", but judging from the JDM Honda Civic he drove up in, I doubt it. He said he was being forced to sell it because his girlfriend squawked about having to park her brand new Accord in the street, while his two off-road trucks, his three motorcycles, his boat and trailer, and his two other Honda Civics were taking up all the parking spaces at their place. He wanted $3500 for her, and while he said he knew I'd take excellent car of the and fix it up, nut if I wouldn't pay the price, he had "Ten kids lined up who wanted to buy it and drift it".

OUCH! A fate worse than death for these cars!

So I coughed up the Benjamins, and brought her home.

It's been a fun ride!

The Fiser Saga: Power Amplifier Autopsy

 Yeah, it's been a few weeks, and a busy time it was with the gorgeous weather we've had for the last week.

And then I got clobbered with the cold/flu/whatever. Anywhoo...feeling much better.

Back to the Fisher RS-2010 Stereo Receiver I've now had almost a year. Yes, I'm embarrassed, but it turned out to be a LOT more work than I estimated. I'm now down to searching for ONE transistor, with all the rest having been sourced, and on-hand. The issue is that it's one of what's called a Complementary Pair, and while a sub for one of the two is readily available, it's compliment is not. Soooo....I have to dive into either finding a vendor with some in stock (NO eBay or Amazon....too many fake parts!), -OR- start going through the "sub-for-the-sub" routine, and find a complementary pair that's available. 

Bags of new transistors awaiting their long overdue compatriot.

It gets a bit tedious....

 

So what killed several transistors, and let the smoke out of three resistors? Who did the dirty, dastardly, despicable deed?

'Twas a shorted Zener Diode, it was.... that's what who dunnit! 

The diode in question is labeled "DO6" in this clip:

 In this application it's being used to develop a voltage which is 12 Volts less than the supply voltage, rather than developing "just" 12 Volts. They do this because the entire amplifier is isolated from "DC Ground", and floats between the +60 Volt and -60 Volt power supplies. The only transistor in this circuit connected to the chassis, is Q06. When the diode failed, it put Q04 into saturation (FULLY turned on), meaning it had only .65V drop across it, which in turn took out everybody connected to it by putting them into an over-voltage condition. A classic example of a Cascading Failure.

So that's where I'm at right now, changing transistors, and getting ready for a brief test when they're all replaced. After I verify all the voltages are back to where they should be, I'll be ready to run it at 50% power for a few hours while I monitor the temperatures to make sure nothing goes bonkers, and then run it Pedal-to-the-Metal for a couple of hours to see how it well it performs.

 

Gettin'n close, finally, to a resolution on this one.

Groan.....Got Clobbered By Something

 Been flat on my back since Monday. Aches like I've never had (even my knees hurt),  coughing, sneezing, going between sweats and chills, and all sorts of other things.

Finally got out of bed today for more than 30 minutes, and while I'm still a bit wobbly, at least I'm feeling somewhat better.

Fifteen Years of Wedded Life....

 

 Was celebrated yesterday. My Sweet Little Wife, knowing me rather well, decided to get married on Valentine's Day so I'd never forget what day it was.

Pretty smart cookie, she is! 

Her Maid of Honor and the Minister who married us will be out here in May for a Girl's Trip, so we'll renew our wedding vows while they're here.

I didn't really think I'd get married again, but then she came into my life and completed it.

I love you, honey, and I'd do it again in a femtosecond! 

Work continues on the Fisher RS-2010, and I finally sourced all the transistor needed to finish it. The parts should be here this coming week.

 

Have a pleasant weekend (snowing here and cold), stay in Condition Yellow, and stock up on popcorn. I think the next few months will be 'interesting'.....

The Fisher Saga....Chasing Classic Parts

 

With apologies to Wayne Carini.......

One of the things about working on old equipment is that sometimes the parts are hard to find, especially if they were declared obsolete years, or decades, ago.

Now while most passive components like resistors and capacitors are readily available, some of the semiconductors are not. Diodes are easy to find, and even the infamous "Darlington Power Packs" now have discrete versions available, but most of the Small Signal Transistors have been extinct for quite some time.

The issue then becomes finding suitable replacements, of modern manufacture. Most "US" transistors have a "2Nxxx" number on them, like one of my old favorites, the 2N2222.

Japanese transistors use a completely different numbering system, as explained on Wikipedia:

"The Japanese technical standard JIS-C-7102 provides a method of developing part numbers for transistor devices.^[1] The part number has up to five fields, for example in the number 2SC82DA:

• The first digit "2" indicates this is a 3 lead device ( a diode would have a prefix numeral 1)
• The letters "S" is common for all EIAJ registered semiconductors
• The following letter designates polarity and general application of the device. For transistors:
  • A PNP high frequency
  • B PNP low frequency
  • C NPN high frequency
  • D NPN low frequency
  • E P-gate thyristor
  • F N-base unijunction transistor
  • J P-channel field effect transistor
  • K N-channel field effect transistor
  • M bidirectional triode thyristor
• The numerals following indicate the order in which the application was received, starting at 11
• A suffix letter indicates improved characteristics....."

OK, so that at least tells me about what they are, but to find out exactly what they are, I had to get the datasheets for each (obsolete) part number. The datasheets list all the parameters for the described part number, and from there, you can use the selection guides on the vendor websites (I like Mouser the best) to find currently available parts with matching specifications.

But what if you can't find a datasheet? Remember, these are obsolete parts, and sometimes a datasheet hasn't been scanned and posted somewhere. Well....then you're getting down to hand-to-hand combat. First you look at the schematic, and see what the applied voltages are, and make a best guesstimate as the the current and power dissipation required.

This is the schematic for the right channel of the power amp :

At this point I've found current replacements for all but three of the original transistors, but it's going to take a bit longer to decide what to use for the last three.....

Sixty-Seven Degrees....In February?

 And it might hit Seventy on Monday. And it's been pretty windy, with wind warnings of sustained winds of 50~60MPH, with gusts to 85+ up around the Colorado/Wyoming border.

The dog sure loves it as she can sit outside, pull her ears back, half close her eyes, sit into the wind, and sniff, sniff, sniff about as long as she wants to.

Picture from November:

 

Had the windows open to air out the house, and even did a bit of yard work, and admired the new fence. Yes, the installers used metal poles, like for a chain-link fence, dug the holes with a little tow-along auger, and set them in with QuickCrete, plumb-lines, and levels. The next day they hung the new panels, and cleaned up the remaining bits and pieces of the old fencing.

 

Looks nice, but I see I forgot to secure one of my radials to it.

And work continues on the Fisher receiver, with a big post to follow.

Hope you all had a blessed, peaceful Sunday, and stay in Condition Yellow.....

The Fisher Saga....Power Amplifier Autopsy

 

 Or should that be Odyssey?

You might be thinking that since this was the "Original Problem" that brought it here I would have tackled it first, and I did do some troubleshooting very early on this assembly.

BUT....(always one of those...) when I noticed the underrated capacitors, the extra parts on this board, the out-of-date "Service" Manual that doesn't match the "As Built" configuration, and the tuning mechanism that fell apart in my hand, et al, I knew I needed to address those issues before I continued on. 

So I took care of all the other issues this receiver had before going into the Power Amp. 

After carefully bringing it up on my "Variac" while monitoring the current (YAY! NO smoke!), I started checking the voltages on all the transistors. ALL of them were way off, indicating some other issues on the board. A search on the AudioKarma forum showed that this is commonly caused by some of the diodes used to bias the transistors were failing. Sure enough, two of the six diodes used were shorted, and both of the 12V Zener Diodes had failed; One shorted, and the other not regulating at 12 Volts. Unfortunately this took out a couple of small signal transistors on the board, so I have to make another trip down Substitution Lane to find some suitable, currently made transistors.

So the work continues, one step at a time......

Tonight's Weather from Fort Collins....

 And YOWZIR! It's gonna be COLD the next few days. We've had a night here and there that were below zero, but this week should break the record for the season

Started snowing around 1700, and now at 2140, we have a good 3" on the "Snow Table", and it's still kinda-sorta snowing. Looks like dry, fluffy snow, and it's going to stay that way. Should be easy going for the Ariens tomorrow.

Took advantage of the 60* ( ! ) weather the last few days and knocked out some yard work. Got the Big Back Gates secured properly for winter weather, and cut six more logs up and stacked them in the garage. After they finish drying (Reeeeal fast here with the low humidity) I'll split them up for the wood box. I'd really like to find a place where I could get some "logs" about 6~10" in diameter and 6~8' long. I can cut them to 18" lengths for the fireplace, rack 'em in the garage, and split-as-needed, which is what I've been doing with the huge limb that came down from out Ash tree in the back yard. Geez....We've gotten four years worth of firewood from that fall!

Annnnnnd.....Work continues on the Fisher, with another post in the works. That thing has some very poor design and layout issues, other than the low cost capacitors they used.

And it takes some and digging around when the Service Manual is wrong, the parts called out on the schematic don't match the parts in the Parts List, and some other things.

Take care of yourself, take care of each other, and keep that head on a swivel!

Took a Week, But I'm Feeling OK....

 Thought I was feeling better, but then it smacked me again on it's way out the door...

ANYWHOO....work continues on numerous things. I'm making up an "Electrical Experiments Board" for grandson #!, although I'm sure his younger brother will enjoy it, too.

It will use one of the LiMH batteries from the small R/C trucks we have, and an assortment of switches, lights, bells, buzzers, and motors. Kind of like an "Electrical LEGO Set" that they can use to learn how to hook things together using wire and "Fahnestock Clips" for the connections.

And of course I'm rolling along on the Fisher RS-2010 receiver. The next post about it will be on the rebuild of the Power Amplifier Board. Had some bad diodes that threw all the voltages off, and clobbered a couple of transistors. Looks like another trip down "Substitution Lane" to see what modern parts are suitable.

Oh, Lord.....What Hit Me?.....

 Picked up SLW about half-past midnight at DIA on (early) Friday morning from a trip to see one of her friends in SoCal. She'd been sick her last day there, and was wiped out the next two days "going at both ends", as it were.

Then it hit me Sunday night.

Flat on my back all day Monday, and even now that I'm up and moving, I'm still kinda 'shaky'.

We got our first measurable snowfall last night.  Looks like about 3~4", about 22* outside right now, with an expected low of 5* by early morning.

Time for a mug of hot cocoa, a blanket, and some TV watching time with a nice fire going in the fireplace.

The Fisher Saga Continues....It's ALIVE!

 Well, at least it didn't go up in smoke when I brought it up on the variac!

And now we go into troubleshooting the Power Amplifier Board, the original problem that brought the receiver here.

This board has six undocumented changes from the schematics in the Service Manual.

1 - Four 10uF capacitors, two each on the STK-0080 "Darlington Power Packs".

2 - Two small inductors on the bottom of the board.

3- An "extra" transistor on each driver transistor

4- An extra resistor in each channel.

5 - A resistor that doesn't go to the designated pad in each channel.

6 - A capacitor/resistor network mounted to the chassis, with "flying leads" going to the board. The capacitor is the out-of-focus blue cylinder handing in midair.

Things like this, along with the haphazard layout of the board (parts are scattered everywhere, part numbering is odd, etc) makes troubleshooting tedious.

This shows "Q17" with an extra resistor, and an extra transistor stuck into some of the holes for Q17. Resistor "R03" is also not going to where it looks like it should go. These are most of the major changes Sanyo made that I have to figure out.

Yes, it needed a lot more work than I anticipated, but that's why people bring me these things to fix. At least I'm down to one circuit board, which to me is the Light At The End Of The Tunnel.

Happy New Year!

 I'll be among the legions of those who will go to bed early. Just getting too old to stay up as late as I used to.

Been very windy here, and the fence on the North side of the backyard has come loose from the rotted posts it was attached to. Looks like we'll be getting together with our neighbors to split the cost of getting it replaced. The fence is the original one from the late 1970's when the houses were built. Our previous neighbor and I replaced a few of the old posts, but several of the others have since rotted away at ground level, and now the fence panels are loose. I rigged them up with some paracord and some "MILSPEC" antenna stakes, but it's time to rebuild that section of fence.

Been cold, too, with the low last night in the high teens, and very dry. We've had two light dustings of snow, and about 1/4" of rain since Halloween way below normal. Looks like the Great Push to get the snowblower serviced has kept the snow away.

Be safe, checketh thy six regularly, and hope 2025 will be what we need.

Merry Christmas - He Is Born -

I'd like to wish my friends here a very Merry Christmas, and a very Happy New Year.

We'll be having our Christmas Dinner with family and friends tomorrow, but tonight is a small gathering for our Christmas Tradition of Sloppy Joes, French Fries, and the ritual tearing of wrapping paper.

No, we haven't had any snow this year, but we might have 40* and raining for Christmas Day.

Peace to all.....

The Fisher Saga Continues - Act III -

 Been working on this post since right after Thanksgiving. I'm making very good progress on the Fisher, and will most likely power it up this weekend.

I have to admit that this receiver needed more work than I expected. It showed signs of being repaired at least twice before, and while the work was of acceptable quality, two of the transistors were a substitute type with different specs. Then I found the under-rated capacitors. A couple of them were open, ten or so were leaky, some showed signs of heat distress, and one appeared to have lost a very tiny amount of dielectric fluid.

Oh, and there were two resistors that had lost their smoke.

I managed to get the tuning mechanism back together, and restrung the dial cord. This had been hanging over my head since I started working on it. The service manual diagram didn't match what was in the receiver, so I used my "Before" photos to see how the gears on the main tuning capacitor fit together, along with a tabbed thrust washer, and how the dial cord was strung. This started when the shaft that goes into the main tuning capacitor came out in my hand and dropped two small parts out as I was trying to diagnose why the tuning was so sloppy. The OEM dial cord was stiff, dried out, and brittle. It made the tuning feel "gritty". AND the tuning mechanism is not documented, with the drawing in the Service Manual not matching how the receiver was built.

 

 

 And now that the front panel and knobs are cleaned and back on it, it's starting to look like a receiver again....

Among other non-documented changes were four capacitors on the Power Amp Board, along with two resistors and a capacitor attached to it, and two small inductors on the bottom of the Power Amp Board. Took a while to trace those parts out, figure out why there were there, and make notations on the schematic.

ALL of the electrolytic capacitors on the Power Supply, Power Amp, Preamp/Tone, Equalization and FM/MPX boards have been replaced. Eleven aluminum electrolytic capacitors in the FM Multiplex section were replaced with tantalum electrolytic capacitors for improved frequency response and stability, and six more on the Tone and EQ boards were changed for the same reasons.

These had failed and were very "leaky".

And while these still appeared to be OK, how many of them are on the edge of failure after 40-some years?

The gooey looking stuff on one end of the larger capacitors is NOT leaking electrolyte. It's a glue used in assembly to keep larger, heavier parts from coming loose before the board is soldered. It's also used in high-vibration environments to keep the parts moving around and cracking their soldered connections to the board.

ALL the wire wrap connections were inspected, and soldered. There were a half dozen that were coming unwrapped, and most of them showed signs of distress.

All the controls and switches were cleaned and lubed with DeoxIT D5 or Fader F5, as appropriate.

All panel lamps were replaced. Yes, I could have replaced them with LED's, but that would involve making a little Rectifier/Filter board as the lamps are fed with 8 Volts AC.

So stay tuned, kids for Act-IV..... The Power Amplifier Autopsy.....

I greatly appreciate my friend's patience and understanding in this. We never really discussed what "Fixing It" can entail. I sympathize with him, as I have numerous friends who had the I Went For A Brake Job, ANNND...experience.

Yes, there will be an Epilogue, probably called something like "Testing And Delivery"...

Big Fisher Saga Post Coming Soon!

 Rolling right along on it, and should be able to power it up this week!

Stay tuned.....

Happy Thanksgiving....and The Fisher Saga continues....

 First of all, We'd like to wish everybody who drops by here a very Happy Thanksgiving. This is our 15th Thanksgiving together, so I have 15 more things to be thankful for!

The work is proceeding quickly on the Fisher receiver now that I have sufficient time to devote to it. So far I've replaced 17 electrolytic capacitors that were under-rated. You simply don't run 24 Volts on a capacitor rated at 25 Volts. You have zero safety margin if the Line Voltage rises a few Volts, and I've seen a low of 116 Volts, and a high of 121 Volts, here at the house. Most of those were on the Power Supply Board,  six were in the Tone Amplifier Board and two were on the Equalization Board.

I soldered all of the wire wrap connections to their pins on the boards, and cleaned up some iffy areas regarding how the wiring is run inside the chassis.

A veritable forest of new lamps!

Say "Ahhhhhhhh...."

All the electrolytic capacitors removed.

And replaced with new, higher Voltage, and a higher temperature rating.

I did the same to the Tone Amplifier Board and the Equalization Board.

If I'm able to move when we get back from Dinner on Thanksgiving, I'll dress all the leads into their spaces, and replace the mini cable ties Fisher used.

And this completes the bottom side of the chassis

Drive safe be careful of any bad weather, and enjoy Thanksgiving. I have a LOT to be thankful for this year.

What I've Been Up To....

Started this post on Monday, then came down with a head cold, which is now progressing South. Feeling better, but still a bit woozy......

Tonight's cold and blustery, a Good Night to stay downstairs, drink hot cocoa, and continue the work on the Fisher stereo for my friend. Since I've scaled back garage operations for the year, and everything's been "Winterized" outside, I'm able to spend several hours or more on it daily.  I'm really embarrassed about taking so long on this, but I don't generally take in any outside work until mid-October or so. He brought this to me in mid-April, and I was only out of the Hospital for a month or so from the Dental Emergency that almost turned off my lights, and was just getting back on my feet.

It was a mess, having been (sloppily) worked on by several people before me.

This is the back side of the front panel. All the yellow, orange, and white wires connected to the brown circuit board are for the fourteen individual little light bulbs that were glued into the back of the panel to light the indicator when that function was activated. I tried really hard earlier this year to find a replacement bulb with lead wires attached. I'd seen them before in various modeling supply magazines, as they're used to light up the insides of scale buildings and such. Reasonably priced, too. BUT....they're all 12 Volts. The bulbs in the receiver are 8 Volts. If you run a 12V bulb on 8 Volts, it ain't gonna be very bright! It had three different kinds of bulbs in it, most were crudely soldered on to the original wires, and the connection wrapped with a bit of electrical tape. Some were dead, some were very dim, and a couple had fallen out of the panel, leaving the indicator for that function in the dark.

All of the wiring on this board had to be removed, the pins cleaned, the main harness wires put back on, and then the bulbs get soldered in. Whoever built this for Fisher didn't pay attention the the details. The soldered the leads for the bulbs to the pins on the board, and then they wire wrapped the main harness wires on! Changing a bad bulb just went from ~15 minutes to over an hour.

Per bulb.

And it turns out that most of the wire wraps weren't done properly, and they slid right off the pin! Wire wrapping is capable of producing a very reliable "gas tight" seal between the wire and the pin. It normally takes a special tool to unwrap the wire from the pin, but not here. Not wrapping them tight enough will cause intermittent connections at some time in the future, and they're NOT fun to troubleshoot. BTDT, DAMHIK!

Looks much better now that it's cleaned up.

This is the gut pile...

....and these are the lamp assemblies I made to replace them. Lamps are rated at at 8VAC, and expected life is 10,000 hours.

Since this receiver is loaded with wire wraps on all the boards, I'm going to add a drop of soldering flux to each of them, and then solder them. Problems solved, and future problems averted.

Early bedtime tonight. Still not running at 100%. I blame Well Seasoned Fool for the cold!

Interesting Flight Path

 Couldn't determine which aircraft flew this, but it caught my eye...

Happy Veteran's Day

 To all who served, I am deeply in your debt. Thank you all for your service, sacrifice, dedication, and loyalty to the USA.

I am humbled to count you as friends....

Ready For Winter!

 Sucked out the old gas from the tank with a "99 Cent Store" turkey baster so I could get all the sediment out, then drained what was left. 

Flushed the carb with a bit of Gumout and ran a small brush through the line and fittings. Put things back on, and filled it up with fresh Pure Gas and Sta-Bil, and it fired right up. Got it warm and then shut it off so the engine could heat soak, and then ran it again back up to temperature.

Brushed off two years of dust, and then went over it with some Meguiar's Quick Detailer while the oil was draining.

Put fresh oil in it and started it up. Again, it fired right up.

Gave Sweet Little Wife some "How To Start and Operate It" training, and parked it back in the garage.

All snow removal systems are now GO! for use.

Winter Comes In With Epic Snowfalls!

 Still here and cruising along. FAR better than last year. Even loaded up the fireplace and lit it. SLW and I are going to pop some corn, and watch Holiday Inn on the TeeVee.

Anywhoo....It started raining yesterday, and by this morning we had ~1" of snow on the cars, trucks, and yards.  The streets (up here...) are still warm, so it's not sticking on the roads. As of 2145 MST we've received .4" of rain, and the rain gauge stopped as the rain turned to snow, then picked up again when it got warmer and rained some more. Started off as rain around 0900, then turned to "Wintry Mix", and now it's snowing.  We had an inch on Thursday that melted in a few hours, and an inch or so this morning, that hasn't melted.

Down by Denver is another story. They've received around 8", with another 6~8" forecast overnight. ALL the highways are closed South and East of Denver. Traffic is a nightmare, and many vehicles are stranded. Further South, into New Mexico, things are even worse. NWS is calling it a "Historic Snowfall for November", and the Northern part of NM is basically shut down.

East of Denver out on the plains is bleak. I think I heard there was about 12", and 6~10" is expected.

Luna is enjoying it, for now. Don't know how she'll react when it's 15*, but she's MUCH more an outside dog than Pebbles was. She's definitely a ColoRADo dog.

So keep warm and dry, keep your head on a swivel, and enjoy your weekend, if possible!

Lovely Fall Day.....not!

 Forty degrees and raining......and cloudy. Dog won't even go outside, and I can't blame her!

Hope you're having a good week so far. I'll be in the basement working on the Fisher stereo. I'm really embarrassed about how long this is taking me to finish. It needed a lot of TLC "under the hood", and some of the parts required were hard to source. The original transistors were obsolete ~30 years ago, and their replacement was obsoleted ~15 years ago. Fortunately Toshiba still makes Small Signal transistors for audio use, but it took some searching to find which ones to use. Then there were the 12 capacitors being run at, or slightly under, their rated voltage. It's amazing they lasted this long!

So have a good week, and keep checking your six. Might get spicy in the next couple of weeks. Whatever the outcome is, it's bound to be a Charlie Foxtrot.....

22LR Ammo....Your Preferences?

 Thinking about getting some more 22LR for my little Marlin semi-auto. I already have a good stock of 22LR, but they're all Wolf and Fiocchi "Match Grade" ammo, plain old lead round nose with what feels like a wax coating on the bullet. I bought these when it was hard to get any 22LR, and while they all feed and fire just fine, it might be nice to have something with a bit more punch to it.

My question is: Do you prefer Lead Round Nose, or Copper Plated Hollow Point? Does a CPHP expand in this caliber? Is it worth the extra cost?

Inquiring minds want to know....

Fall Is In The Air....

 The leaves have started turning here, and dropping, and I'm trying to make hay (aka "Yardwork") while the nice weather lasts. I've caught up on over half of my "Didn't Get Done in 2023" list, and have been keeping really busy with all the other projects I have.

And I just haven't felt like posting much. Maybe I can talk to OldAFSarge and see what he does when his Muse goes AWOL!

So between chasing grand kids, cutting firewood, fixing things on the house, and playing with the dog, I'm kinda busy.

I'm making great progress on the Fisher SR-2010 that I'm fixing. Found some more "25 Volt capacitors running at 24 Volts" that needed upgrading, and I finally got the right size dial cord to restring the dial pointer. The dial cord I had 'in stock' was a bit too big in diameter to smoothly go through the pulleys and guides, so I had to track that down and get some. Just another item requiring attention. 

And on the Supra front....

My son helped me roll it out and pressure-wash the engine bay, which had been marinating in Gunk for several days. I "missed" two small areas, but those will get hand cleaned when I get under the car to replace all the clutch hydraulics. I found receipts indicating the Original Owner had purchased NAPA parts for the this back in 2006. And his mechanic did a poor job of replacing it, using some "definitely wrong" hardware for the job. My new parts came with new hardware, so that will get addressed when I pull the master cylinder so I can repair where the leaking clutch fluid took the paint off the firewall.

I can see my bellhousing again!

This is one section of the intake manifold that I've port-matched to the gasket on both sides, and ground off all the casting flash and mold marks inside the runners, from end-to-end. Should flow much better as the port match was really bad.

Ms. Swan was quite happy to catch some rays and get a bath.

I'll try and get some shots of the Fall colors here. Only certain trees have flipped the switch, and they're quite striking to see.

Have a good rest of the week, and always remember to Checketh Thy Six!

Repeat After Me.....He's OK, Still Here, Yes He's Busy.....

 Goodness, I really should post more. I probably will once Winter sets in, but for now, I'm still catching up on Things I Couldn't Get Done in 2023.

The snow blower is #1 on the priority list. I have to get it running, and burn out the 2-year old gas in it. Then change the oil, and refill it with fresh gas with StaBil from my one gallon can, which I fill from my five gallon can, which is now sitting empty, and has to be refilled. 

So, Tuesday will be pretty busy between the Dump Run we're going to make, a trip to Home Depot to replenish some consumable supplies and pick up a few things, a stop at the auto parts store for some other consumables, then stopping for gas in the truck and gas cans. And depending on where and when, we'll probably stop for a late lunch.

WHEW!

Yes, I used to be able to do all this before lunch, and I marvel at how I did it. But that was then, and this is now. I ain't griping or anything....I give thanks  every  single  day  that I can still do it effectively, even if a bit slower.

Sorry, no eye candy. I'm doing busy doing things to stop and take pretty pix!

May you all be vigilant, safe, and prosperous!

Finally Friday!

 And I now have a functional PC with a new 4TB Solid-State Drive, and a fresh installation of Kubuntu 24.04 Long Term Support. It's also much quieter as the fans on the video card aren't screaming at full speed trying to keep the card cool. The Root Cause appears to be a leak from a failed soldered connection on one of the four heat pipes used in the heat sink assembly. Oh, well.....I built this rig in 2012, so I definitely got my money's worth out of the video card.

The money I budgeted to upgrade this PC will be used on the workshop PC, and a National Instruments IEEE-488/GPIB Interface board so I can automate my HP test equipment.

Have a great weekend, and keep your pagers and walkie-talkies wrapped in aluminum foil.....

NOT the Motherboard!

 In a last ditch attempt to verify the problem was with the motherboard, I pulled out the video card I was using, and used the built-in video on the motherboard.

Holy Smokes! It's been running for several hours now, and hasn't locked-up once.

One thing I noticed the other day when I was under the hood was that a corner of the video board looked like it had oil dripped on it. I just looked at it under magnification, and one of the heat pipes on it had sprung a leak, and the coolant (silicone oil, I believe) leaked out. Why the hard drive was active during the lock-ups remains unknown. I suppose the video could have locked up the PCIe bus by sending out garbage and hanging up the bus, but I have no way of testing for that.

I still need to upgrade this computer in the workshop, so the $$ budgeted for my main PC can be put towards that.

Now I have to transfer all my stuff from the hard drive that was in that PC to the new Solid State hard drive I put in it.

Hang in there, it's Wednesday, and that means it's all downhill to the weekend. And we're forecast to have a VERY wet (1~2") weekend!

Testing 1....2....3....

 Trying to post from the basement shop PC. My main PC appears to have a terminally ill motherboard.

Posting/Commenting Issues Solved.....and One for Phil.....

 By dumping Firefox. I've been using Firefox since Netscape morphed into it, and I've been very content until lately. It started refusing to post comments on any Blogger site due to "Cross-Site Tracking Cookies", and I couldn't even reply on my own blog. It was also running slow, and randomly locking up, sometimes tying up so many System Resources that it was very difficult to use the mouse and keyboard.

So now I've switched over to Falkon, a more "lightweight" browser. And in the middle of this, I did a major OS update, and forgot to plug the PC into the wired network. BAM! Lost my wireless connection, and spent a couple of days getting that squared away. I'd really rather have a wired connection to the router, as I was getting 750MB download speeds with very low latency (no lag monster), and I max out at 25MB on the 2.4GHz wireless link, and 75MB on the 5GHz wireless link. I'll have to check the specs on our 7 year old router, and my equally old wireless adapter and see where the bottleneck is.

And as usual for this time of year, I'm really busy. I have a ton of year-old Didn't Get Done things to take care of, and after all the ups and downs and recovery time of last year I'm making up for it as best I can. Between watching a grandson or two, cutting up a bunch of firewood, yardwork, attending family gatherings, a HoneyDew list that never ends, and working on my own projects.

Repairs on my friend's Fisher SR-2010 are continuing at a slow pace. After finding capacitors in the Amplifier section that were running Danger Close to their maximum ratings I started going through the schematic looking for others, and found half-a-dozen more "At Risk" capacitors, so I'm going to change them, too. They're "$2 Parts that cost $100 to fix", so out they go!

And here's the one for Phil I promised.....

Nice clean, shiny, NEW water pump, timing belt, tensioner, and spring. And everything around them is getting a good scrub, and paint touch-up where required.

I do love working with nice, clean, shiny stuff. Getting here is a lot of tedious, time-consuming work, but oh so worth it.

Enjoy your weekend, use your time wisely, and always stay in Condition Yellow. I have a feeling things might get a bit spicy in the next few months.....I just wonder how BIG a cheat The Evil Ones are planning to pull off come November.......

Posting and Commenting Issues....

 Awwwww.....CRUD!

Having trouble posting comments on other blogs, and even my own blog. It appears to be a setting in Firefox that blocks "Cross-Site Cookies", which is how Blogger remembers who you are on different pages.

So bear with me if my comments don't appear to new posts. If it's a WordPress blog, I can comment, but Blogger won't allow me. Really frustrating, and I'm working the problem.

Still Here, Still Busy!

"Busy As A........" pick your favorite term......

I really should post more often, considering the medical issues I had all last year. 

Anywhoo.....

Between having the grandsons twice a week, with an overnight on Friday or Saturday, doing yard work, working on my friend's Fisher SR-2010, and banging away on My Old Toyota, I haven't the time, or inclination, to do much posting.

If I could get maybe two per cent of the energy the little ones have, I could get more done.....

Enjoy the weekend, check your six, and God Bless y'all...

Trouble In The Skies?

 Every so often when I'm checking my PiAware ADSB receiver/display I'll notice an aircraft with a flight path that catches my eye. I watched all the aerial tankers and observation aircraft during the recent Alexander Mountain fire. And I see an occasional EC-135 Rivet Joint from Offutt AFB on a training flight.

This American Airlines flight originated at DFW, and was supposed to land in Eagle, Colorado, a fair bit Northwest of us.

Somewhere on his path he diverted to Denver. He enters an oval "Race Track" pattern, and then is directed to a longer, narrower Race Track, which he orbited several times. He then heads out quite a ways to the Northwest, turns and heads back to Denver, gets in the pattern, and lands. 

Kinda looks like something went wrong. Medical Emergency, or Aircraft problems? He didn't squawk 7700, so it wasn't a MAYDAY situation.

If you hear anything about AA1245, let me know.

Been 95+ and muggy the last several days. Yesterday and today's weather Radar showed some thunderstorm activity in the immediate area, and today it looked significant. We didn't even get any sprinkles here, but as long as it rained in the burn area, I'm good with it.

Got all the lamps, the electrolytic capacitors, and the burned resistors changed out in the Fisher RS-2010, and as soon as I figure out a bunch of components NOT on the schematic or parts list are doing, I'll annotate my schematics, and carry on.

Stay hydrated, my friends, and always keep the old noggin on a swivel...

More on the Alexander Mountain Fire

 It's up over 9,000 acres now, about 14.5 miles in area, and roughly 8% contained.

Compared to Fort Collins, it's big.

But not nearly as big as the Cameron Peak fire in 2020, which was 208,000 acres.

My "PiAware" setup is working perfectly, allowing me to see where the air traffic for the fire is headed.

Prayers for the Firefights and flight crews.