Been Busy....Follow-Up Post Coming Soon To A Browser Near YOU!

 Been a week since last post. Been busy herding grandkids, playing with the dog, yard work, house items, and working on all manner of stuff.

More to come, with pix.....

Massive Storm East of Colorado

 The Spring/Summer weather is always interesting to watch here. Here in the foothills we're more sheltered than folks living East of here. My son's place in Greeley, about 30 miles Southeast of here, got absolutely hammered a couple of days ago. His backyard flooded, and the water ran into the basement via the back door. He was lucky, other than some trees stripped by hail, he sustained no damage. People in other parts of town got flooded, and there was a fatality.

When I was checking the weather earlier, this storm showed up:

It extends North into South Dakota, and South into Kansas. Sure glad we don't live in the storm's path!

Are We Down To One Box Now?

 This "case" set some unpleasant precedents. Does this mean we get to see Barry's birth cert? Marriage license? Why not?

Memorial Day

 

WWVB Antenna Damage

 When we first moved here, I was a bit concerned about ice and snow bringing down my antennas. The first few Hams I met laughed and said the WIND would kill my antennas long before I had to worry about ice and snow getting them.

In early April, we had a severe storm system that went through with rain, hail, and very high winds. Wind speeds were excess of 90MPH out on the plains, like where WWV is located. One of the "Triatic Cables" holding the Capacitive Loading Assembly, aka the "Top Hat", failed, and the other eight wires it supports came down

Full article, with lots of pictures, is here at the WWV Amateur Radio Club website.

Supras and Stereos.....

 The repairs on the Fisher RS-2010 are proceeding, but a bit slower than I expected. The failed transistor is an obsolete part number, so I had to search around and find a proper substitute. Found a replacement, but it turns out those are obsolete, too, so more searching took place. Finally found a suitable, modern transistor, and it's compliment, and ordered 10 of each. I also found numerous electrolytic capacitors that were used AT, or slightly under, their maximum rated voltage. Running a capacitor rated 63 Volts in a 60 Volt circuit is a huge mistake. I'm surprised they haven't failed already. So, parts are (finally) on order, and I'll continue to clean it up as I wait for the parts to arrive. Parts installation and reassembly isn't difficult, and then I can do the alignment of the receiver, and finish it up.

And work continues on the Supra. The front Main Seal was starting to leak, and between the oil, and rubber dust from belt wear, it was real grease pit under the timing cover.

Took a lot of scrubbing, but things are clean now, and I can start putting this section back together.

Next up is to get the intake runners off so I can clean up this side of the engine.

 

Should be pretty nice looking after it's finished.

Sixty Years In Amateur Radio

 I just realized that it was 60 years ago this month that I received my first Amateur Radio License.

I'd always been given old electrical things by my neighbors, and was given a few "Old Radios" that would be worth a nice chunk of change these days. Some of them had "other" frequency bands on them labeled as "Short Wave", and by connecting a long piece of wire to the antenna terminal, I was able to hear stations from all over the world. I was hooked!

A grade school friend who I still keep in touch with helped me build my first "Real Radio", a Knight-Kit "Star Roamer" shortwave receiver.

In the Summer of 1964, he and I attended the Novice Class License classes that the local radio club put on, and we both passed our code and theory tests, and were duly licensed by the Federal Communications Commission. In those days, it could take 8~10 weeks to receive your license, and after about six weeks, watching the mailbox became an obsession. My Dad was so proud that he drove me up to Allied Radio Corporation on 100 S. Western Ave in Chicago to get my first Amateur Radio receiver.

It was a Hallicrafters SX-146, and was a 'dream receiver' to a 13 year old kid.

My first transmitter was a "Home Brew" affair built from salvaged radios and TV sets. It had a 6L6 power amplifier, driven by a 6AG7 crystal oscillator, and put about 10 Watts output to the antenna. It was very similar to this circuit, but I was running more voltage to the tubes.

8~10 Watts isn't much power, and my Dad got tired of my whining about it, so he made me a deal. He'd match what I had saved, and when it was enough, we'd go to the Heathkit store and buy a DX-60 transmitter.

My antenna was a simple 40 Meter "Inverted Vee" antenna, one of the many flavors of the ever popular dipole antenna.

At that time, the Novice Class license was good for ONE year, and it was NON renewable. You either upgraded your license, or got out of the hobby. Upgrading to General Class was a Big Deal, as you had to demonstrate your proficiency with Morse Code at 13 words-per-minute and take a comprehensive written test covering the FCC rules, Operating Procedures, and a very Technical section.

But that's a story for another day.

Have a good week, and keep your head on a swivel!

Carolina In the Pines

 

She came to me, said she knew me
Said she'd known me a long time
And she spoke of being in love
With every mountain she had climbed
And she talked of trails she'd walked up
Far above the timberline
From that night on I knew I'd write songs
With Carolina in the pines

There's a new moon on the fourteenth
First Quarter the 21st
And the full moon in the last week
Brings a fullness to this earth
There's no guesswork in the clockwork
On the worlds part or mine
There are nights I only feel right
With Carolina in the pines

When the frost shows on the windows
And the wood stove smokes and glows
As the fire grows we can warm our souls
Watching rainbows in the cove
And well talk of trails we've walked up
Far above the timberline
There are nights I only feel right
With Carolina in the pines 

 

 I first heard this song shortly after we moved here. I thought it was John Denver, but it wasn't. I looked and looked and looked, and finally caught enough of the lyrics to Google it, and found out it's by Michael Martin Murphy. You probably heard him do "Wildfire", which was popular.

It's called "Carolina In The Pines", and is now on my playlist.

Enjoy!

Meanwhile, Back On The Workbench......

 My next patient on the table is a Fisher SR-2010 receiver with no output.

 Basic examination revealed a burned 100 Ohm, 1/4 Watt resistor, labeled as "R60", caused by a shorted transistor. The bad transistor is the slightly-out-of-focus grey device with the tab at the top.

Since the transistors originally used are obsolete, I have to locate substitutes. I have the data sheet for the OEM transistors, so I know the parameters. Several members over at the AudioKarma forum have gone through the process of selecting replacements with modern parts, so that's how I'll go after I read a hundred posts or so....Since the substitute will have somewhat different characteristics, and it's in a "balanced" configuration, I'll replace both of them. And I'll do the same for the other channels. I also noticed half-a-dozen electrolytic capacitors that should be changed. Their maximum working voltage is 63 Volts, and they're on a 60 Volt supply. They're loud, messy accidents just waiting to happen.

Before I started on this, I checked all the controls for smooth operation. All of the switches need cleaning, their mounting hardware was loose, and several of the push buttons are sticky. Simple job cleaning them, but it takes time.

One thing that really bugged me was that the tuning knob had a scratchy, notchy feel to it. It also made a "tic tic tic" noise as you rotated the knob. Further investigation revealed the operating shaft for the tuning capacitor was a tad loose....

So since the dial calibration is now completely borked, and I have to disassemble the capacitor to find out what happened, it looks like I'll be restringing the dial cord with a new one. Which means off with the front panel.

Which revealed a cracked light diffuser under the panel.

A drop of thin acrylic cement, acetone, or toluene will hold it together once I get it realigned.

I'll do my usual "Clean-and-Shine" and replace all the dial lamps, which are quite darkened with age. Should be quite pretty when she's finished.

 

Annnnnd out in the garage, work proceeds on the Supra. I needed to know the current draw of my new fans so I can size the new wiring and fusing, so I made a little lash-up to power the fans while I measured the current.

 I used some 10 gauge red/black cable, and a fully charged Optima Yellow Top battery. The clamp-on ammeter is one that also reads DC Amperage, and it showed a running current draw of about 5 Amps, with a brief surge to 20 Amps when the fan is powered on.

Total Rain for April.....

 Have a good, safe week, and don't forget to check your six.

Array Solutions AND MFJ Closing Up Shop

 Got this from a friend:

A few weeks ago, Array Solutions announced they were closing their doors. Now MFJ has made their announcement
.
April 25, 2024
 
 Dear Fellow hams and Friends,
 
 It is with a sad heart as I write this letter. As many of you have heard by now, MFJ is ceasing its on-site production in Starkville, Mississippi on May 17, 2024. This is also the same for our sister companies: Ameritron, Hygain, Cushcraft, Mirage and Vectronics.
 
 Times have changed since I started this business 52 years ago. Our product line grew and grew and prospered. Covid changed everything in businesses including ours. It was the hardest hit that we have ever had and we never fully recovered. I turned 80 this year. I had never really considered retirement but life is so short and my time with my family is so precious.
 
 I want to thank all of our employees who have helped build this company with me over the years. We have many employees who have made MFJ their career for 10, 20, 30, 40 and more years. We are going to continue to sell MFJ products past May 17, 2024. We have a lot of stock on hand. We will continue to offer repair service work for out-of-warranty and in-warranty units for the foreseeable future. Finally, a special thanks to all of our customers and our dealers who have made MFJ a worldwide name and a profitable business for so many years.
 
 You all are so much appreciated.
 
 Sincerely Yours, 73s Martin F. Jue, K5flu

Array Solutions specialized in large antenna systems, and MFJ made many Amateur Radio products.

A Week With Luna....

 She's settling in quite nicely. She's very obedient, affectionate, friendly, and amazingly good with both our grandsons. She's still camera-shy, so I snapped this one with my cellphone.

She's not quite sure of what to make of our backyard, which is big enough to qualify as a Dog Park in some cities. She was in the shelter for about three weeks, and prior to that she was an "apartment dog" for 3~4 months. We don't know the environment of her original home where she grew up, but she has more than just basic training. The owner who turned her in got her from her brother. He and his wife are expecting their first child, and couldn't cope with an active dog and a new infant, so he gave Luna to his sister. She had to surrender Luna because her landlord "Found out we had another dog", and threatening legal action. Poor Luna was caught in the middle, and lost her home. She's great in the car, but do NOT turn on the windshield wipers! She lunged at them today when we took her for her visit to our DVM. Just protective, I guess.....

And it's really nice to have a dog in our lives again.