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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...

This is a replacement for the TRC-415 schematic on CB Tricks. The one on CB Tricks is alright for printing purposes, but it has two pages. The schematic is upside down and the other page is blank. I read most of my schematics off the monitor. In the near future I’m going to restore this radio...

I was at the VA a few days ago for my eye exam. After your eyes are dilated they give you these temporary sunglasses so you can drive home. Looking for a lens filter to decrease the brightness of your LED display? These sunglasses are ideal. They’re not too thick and they’re easily cut to any...

A cherished JC Penny radio that I restored has a broken channel selector. Only a few JC Penny models have these unique selectors. Normally when you turn one of these analog selectors in a clockwise direction the numbers go up, these odd balls go the opposite. I’m searching for any one of...

What you’re looking at is the inside mic clip portion on a Cobra 29LTD cover. The two holes the nuts are covering were striped out by someone that over tightened the sheet metal screws. The application of PC-7 Epoxy Paste solved this problem. M3 screws are the popular size that is used on most...

I replaced a damaged speaker jack on one of my old 29 LTD’s recently and I thought I would provide the correct wiring info to avoid any confusion while changing over to the older style. If any of you replaced any of these jacks you already know it’s very difficult to replace them with the same...

This is another compact I recently rescued. These are often seen on Ebay or at garage sales without the mic. Once the stock mic’s 6 pin RJ-11 module connection has been damaged, either on the radio or the mic plug, these radios are usually tossed or sold for parts. Buying a replacement mic...

As I stated in other posts, I’m not fond of Din jacks. I prefer the 4 pin Cobra standard connection that coincides with my collection of various mics that I use for backup or vocal experimentation. As seen in the diagram, this is about replacing the DIN with a 4 pin jack on the Korean 20 Plus...