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So since my antenna rotor has been broken since last September, I had some time (caught up on the “Honey Do List”) to drop the mast to replace it. My mast is a 40’ 1 1/2” water pipe attached to a 6 x 6 concreted in the ground and bracketed to the house at the 20’ and 35’ heights. It is mounted...

REALLY!!! WOW https://www.ebay.com/itm/175524782427?mkcid=1&mkrid=711-53200-19255-0&siteid=0&customid=link&campid=5336136228&toolid=20001&mkevt=1 73 David

All, I have recently aquired an RCI 2970DX in a trade for some work I did. It was "Truckerized" with the bias VR's max'd out, mod limiter cut and strangest of all-the wiring from the power plug (internal to the chassis) to the amplifier section pulled out of the Molex connector. As you can...

I have begun a restoration on a Yaesu FL2100B and am wondering if I can add a 3 conductor power cord to this unit for safety reasons. It will be wired for 120vAC operation. Attached is the power supply schematic for your browsing. 73 David

All, I have undertaken another long term project. It started in early September and is nearing the finish line now. A local operator I have done work for in the past brought me a Heathkit SB-220 in original but very dirty, neglected and homely condition. (I felt a little sick seeing it for the...

I bought my wife a new Spectrum analyzer with a Tracking Generator for Christmas. I nailed it! How did you do? 73 David

I have a friends Kenwood TS-940S with a power supply(or AVR board) problem (as has been well documented). Since I do not trust most e-Bay sellers, I have been looking for an EQUIVILENT (not substitute) replacement for the AVR boards Q103-originally a 2SD1266QP-my example or a 2SD843Y per the...

So I have accumulated 3 or 8 148GTL's in the last couple of years. One of which will be repaired due to the cosmetic condition of the faceplate, case, circuit board etc. using components from the others as needed. So the "restoration/repair" project is nearing it's end for the lucky unit (it is...

Just realized I started my 13 week vacation to Parris Island SC 40 years ago today. Damn! I'm getting old!! 73 David

All, I have another project. This one is a Grant XL with an MB8719 PLL. The owner said it was working fine, made a strange noise through the speaker while receiving then receive was gone. I found this unit had been highly modified. I.e. 10 turn clarifier, extra channels on 2 of the front panel...

I wasn't expecting anything in return for my recent efforts on a friends 148GTL-DX but he surprised me with a Shure 444-Demco Edition microphone. He told me the element was no good in the microphone but I have a plan and a fix for that. Pictures to come! 73's David

I am looking at a 148 DX (late version with MC145106 PLL) for a friend of mine. It would not stay on frequency is why he asked me to look at it. After a few futile attempts to "tweak it in" I replaced all of the electrolytic capacitors in it (they were all original) and gained a little ground on...

My everyday amplifier started showing some signs of needed some attention about a month or so ago. I have been kind of busy and took it out of line and used a back up amp for a while. Curiosity got the better of me so I took the covers off this past weekend to see if I could find out what was...

All, Below is the next project for me. It belongs to the same friend as the Palomar Skipper300 and the Kris 600 SSB. Same repair deal as the other 2-He pays for parts and I have some busy work and a learning opportunity. Story with this one is it is keyed up as soon as the power switch is turned...

All, My friend, the owner of the Kris 600 SSB I recently repaired, brought me a Palomar Skipper 300 to see if I could repair it for him. Since I take plenty of pictures of before and after (mostly so I can get to the AFTER) I figured I would post a thread here in the hopes it could help someone...

All, So a good friend of mine asked me to look at his Kris Amp for him. (It had been sitting in a Truck Stop CB shop for about 6 months) I love a challenge and never pass up an opportunity to learn something-So it is on! The initial issue he had with it was that the SSB delay was not working...

I recently acquired a "Made In The Malaysia" 148GTL. Upon inspecting it today, I found a 68 ohm resistor bridging the base of TR-37 to ground. I believe the original part was supposed to be a 4700 ohm (R226). Is this somebody's idea of "strapping" it for more power? Maybe a swing kit? Or is this...

All, After seeing kopcicle’s post (see below) in an earlier thread, my twisted mind started wondering. I have a very clean Regency Range Gain DSB base that was given to me awhile back. It will power on and transmit (with low output-may or may not be on frequency?) it will receive (with low...

All, Rambling through my junk box, I ran across a receive pre-amp I picked up many years ago (Don't remember where). It is a very simple circuit that I have tried to draw although I am sure it is not to engineering standards! I did install it in a Cobra 29 many moons ago that was in my service...

Does anyone have a schematic copy of the above referenced radio (Uniden board PC-221AB)? One of my $10.00 specials. I do have the schematics of the 89XLR, 29XLR, 21XLR, The Uniden/Presidents (Dwight D, Honest Abe, Teddy R etc.) and the Teaberry "like" models. This board is a bit different from...