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New Cobra 139 enhanced scans with spliced schematic.

I appreciate the effort with scanning the Cobra 139, but the pages were too blurry to reap a considerable amount of the information. I have book 59. Given a little time I will gladly post an enhance manual, and splice together the schematic. Meanwhile, be advised that CBTricks has the...

Thanks for the scans. This is the spliced and cleaned version of your schematic.

Regardless, most of my Goodwill radio buys are under $12, shipping included. For me its a small price to pay for all the needed parts I receive such as finals, cans, crystals, PLL chips, mic cartridges, to name a few. I can’t afford to buy a NOS part or a part someone else pulled every time I...

Although Goodwill prices have gone up like everything else, I still buy from them on occasion. Anyway, I usually buy low cost single bidder radios that are needed to repair a similar radio. If both radios are restored in the end, that’s a bonus. If someone else trumps my starter bid, I usually...

Redundancy becomes a necessity at my age. It’s nature’s way of providing me with compensation. If you’re and old fart and still believe you have a steel trap mind, you’re either a freak of nature or a liar.

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...

In 1979 I sold my Drake TR4-C with W-4 watt meter and E-TEK FR-4TR frequency readout all for $500 dollars. I replaced it with a Ten-Tec Omni D that had a better receiver, but I still missed my TR-4C afterwards. All the Drake really needed was a quality preamp to boost sensitivity on 15 and 10...

obscene or indecent words or language?? I never known of any until some president taught me when I was in some locker room as a child......

Yes R42

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...

This is an enhanced service manual with a separate redrawn schematic of the Midland 13-857.

I don’t use any specialized program for joining those pages together. I mainly use early versions of Paint Shop Pro and ACDsee. Some of the early paint programs that I have become efficient with for the past twenty or more years. Horizontal and vertical line alignment is the key. Each page is...

I just finished the enhanced Hy Gain VIII manual with a separate spliced together schematic. The file size was a little large for this forum, so I split the manual in two parts.

This is the enhanced manual and spliced schematic that I did much earlier when it was first posted.

At this time this is the best factory manual I could find on the Kraco KCB-2340. The resolution on the schematic I saw on the CB tricks version is not high enough. It's also listed in Sam's CB 162. A volume that I don't own.

The available schematics for all the other Citi-Fhone models show the same AC power plug pin configuration, so you should be OK in that regard….I just hope you don’t run across any “Silver Mica Disease” inside those old IF cans. Knowing the value of those internal caps and replacing them is a...

Thanks for the corrected scan. This is my enhanced addition of the Citi-Fone SS with a separate spliced jpg schematic.

It looks like that GPS antenna was mounted just below the CB antenna’s coil windings. That probably didn't impact the SWR much. Especially if the GPS mount is made of plastic like I think it is.