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I wanted to pass along this deal to others that may want a quality dynamic replacement mic. In the past I have purchased the Uniden BC645 electret condenser mics. This two pack of so called “walkie speaker mics” contain 500 ohm dynamic cartridges, not the same as the original BC645. They are pre...

I just finished restoring a Radio Shack TRC-481. There are actually two versions of this radio. The one labeled “Radio Shack” is the 21-1550B version, and the one labeled “Realistic” is the plain 21-1550 version. I never seen the inside of the Realistic version, but I’m showing the front side of...

The first page of the service manual will show some examples of the 23 Ch radios or clones that I found that use this board so far. Most of them include a FCC ID tag stating 1125. They used sheet metal screws on the case halves and even three hidden ones behind the face plates that attach the...

I recently acquired an Instruction manual with schematic for the Granada CB-4. The Granada CB-4 and the SparkOmatic CB-1023 are basically the same radio. They were very common, and neither was covered by CB Sam’s or CBtricks. The radio examples I restored had bad finals and a few associated...

I’m looking to purchase a 23 channel knob for a recently restored Pearce Simpson Tiger 23C. Other Pearce Simpson 23 channel knobs like the Tiger Mark2 will also work.

I was curious about some of the early mics used in Bob Dylan’s new official trailer, specially this skinny microphone with the large windscreen as shown in the photo. It was mentioned that only period (1964-1965) mics were used in the making of this movie. Thanks to others asking this same...

Besides replacing all the electrolytic capacitors, two revisions were done on this radio. A heat sink was added to the audio chip, and my usual Din to 4 pin mic jack conversion. Initially the audio IC (uPC1224H) was fried. Fortunately I found another one in my audio IC bin. I believe it was...

With our Royce dealership, the 606 and the 600 was among the early 23ch radios we sold. Except for size and features, both had similar 37Mhz crystal matrix circuits. Royce also used two transformers in their audio chain. One thing you could say about their electrical engineers, for better or...

I’ve been playing with my NOS Midland tester. It’s the one on right. As an example, I also included the photo of a Micronta meter. You will find a number of similar models with slight differences. Notice the batteries are still in the wrappers. While removing the back, a red tag fell out that...

This particular 3 digit LED was salvaged from an old Kidde Nighthawk carbon monoxide alarm. Most of these carbon monoxide alarms start to signal “error” after about 3 or 4 years and need to be replaced, but IMO the LED readout is worth saving for various projects. I modified the following...

I recently screen captured this CB radio from the movie “Death Race.” The Hallicrafters Littlefone CB-3A was a popular 8 channel radio made back in 1962. I recall repairing and wiring a D104 desk mic to one of these for a friend.

A modified version of a comic I saw on the web. A “caveat emptor” warning that should apply to anyone seeking an honest and reliable repairman. I may make some additional changes at a later date....Possible QSL card....LOL

I would put this radio in the rare category. Before now, I never seen or worked on one before. Looking at the data plate, it was made during the early transition to 40 channels. To get more acquainted, I decided to do a full restoration. Several apparent faults needed to be corrected first. The...

Recently I was presented with a Cobra 19 Ultra III that had a blown final even though the TX scale on the front panel would still show all 4 bars when keyed. ?? After replacing the final I looked for some sort of TX meter adjustment, or typically a pot. The RX side has an S meter adjustment...

Usually we have pristine air quality here in the Adirondack foothills, but not today. Hopefully the smoke will clear before too long. It’s bad in this area. I started to tear up and cough on my way back from the mailbox. It looks like the dense fog we get in our valley sometimes in the early...

Midland had 3 versions of the 13-882. This covers the earliest “plain version” that CB tricks omitted. The stand out feature in some of these early crystal matrix radios are the two transformers some of them utilized in the audio chain. I found this particular radio a little strange concerning...

I noticed that CB tricks have scans of the factory manual, but I thought that the Sam’s version would help complement that archive. I once owned the Tram 60 when they first hit the market. Even though I received my dealer’s discount, I remember how it affected my budget for month’s afterwards...

Another parts source I’m not sure if MarVac Electronics has been mentioned previously by anyone, but I just purchased a 16 pin DIP (ECG787) from them that worked in my Motorola Mocat restoration. While doing the recap, a dingle berry that I missed toasted the original Motorola part. Other...

I made this chart for the PLL02A 2 crystal AM Cybernets that I’ve been working with. The only 02A truth charts that I found on-line were for the SSB boards (not the same). I also prefer my chart with the pin numbers in reverse order. This is as they naturally appear on the print side with...

I’ve been removing glue on all my radios that need it. Mikes Radio Repair YouTube videos cover the subject extensively, but I think some may not be aware of one other technique that’s been saving me valuable time. I usually start removal by carefully pushing the glue up with a miniature flat...