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Don't know if this story has reached this forum yet, got a link to this story from an old pirate-radio pal. Yeah, Steven's old. My advice is to steer clear of Belarus. https://tech.slashdot.org/story/26/01/21/2018229/ham-radio-operators-in-belarus-arrested-face-the-death-penalty I'm sure...

The RCI29 "10-meter" base radio is built into the same cabinet used for the Galaxy (RIP) DX2547 40-channel CB. Has the new circuit board used in the X9 and other models. This customer complained that the Tone knob didn't do anything. It's not strictly a "tone" control. Technically it's only a...

A long-time customer talked me into fixing his UR5QW equalizer/echo/etc audio gadget. Looks cool enough. Said it went totally dead. No output of any kind. And no schematic to be found. Sure enough, there's a tiny part that looks like either a surface-mount fuse or a PTC protector in line...

Someone requested the truth chart for the Cobra 142GTL and I neglected to make a note of where that was posted. Can't find that thread right now. I scanned it, and it occurred to me that a little explanation might be helpful. The column marked Divider Input is the frequency you'll see at pin...

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Well, okay. Maybe the title is a little over the top. Even so, parts suppliers I have relied on for years are falling by the wayside month by month, year by year. All Electronics was a reliable source of 'second-source' electronic parts. Prices were a fraction of the regular catalog sources...

The clock/counter in the 1978 Cobra 2000GTL had a design boo-boo in it. They connected the output from an analog chip into the input of a digital chip. Turned out not to be too reliable. Enter Technical Service Bulletin 1232. It shows how to fix this tiny flaw with one disc capacitor and two...

For decades radios with features not legal for 27 MHz CBs have entered the country as "10 meter" transceivers. Typically the Galaxy, RCI, Connex and such brands will be intentionally crippled on the inside before shipment, and get "un-crippled" to cover 40 CB channels once the radio is safely...

Had some requests for an upgrade kit to replace the relay in the Browning 180 base linear. It was legal for Browning to sell, because their 1960s radios were type accepted for a business license. No joke. Had one customer in 1975 that was licensed for 27.320 MHz. Had a Browning Mark 2 base...

Lazarus! Arise from your back burner. A few years ago I posted a project that shrinks the 9/16-inch digits on the SanJian PLJ6-LED frequency display so it fits behind the dial window of a Siltronix 80/90 VFO or the VFO window of a Tram D201. And then reality set in. Removing the big digits...

The old saw goes "Measure once cut twice. Measure twice, cut once." Lost track of how many times I advised someone to check the base voltage feeding to a new replacement final before soldering that lead to the pc board. Shoulda taken my own advice. Customer states no transmit from his Cobra...

Forgot I had this one. It's about two by three feet, laminated. The guy who let me copy it was a RCI dealer at the time. If I discover more models that use this board, I'll update the list. Only cost $18.33 to get this one scanned to a PDF. 73

Now and again day-to-day life just drives me to do something stupid, if only for the sake of variety. This is a chore I have procrastinated for ten or fifteen years, maybe more. I'll guess that this wiring diagram for the traditional analog "Tweety Bird" noise toy has made the rounds over the...

Oops. Should say "fifth decade". Took a few shots of a D&A Maverick we refreshed for a customer. This is the gray one with the tube-type keying circuit and the 3-position band switch in the middle of the lower three knobs. The mileage looked really low, so it keeps the original relay and...

The two-pin mike socket on the Browning base-station transmitters is becoming an expensive proposition. The 80MC2M plug has a flaw worse than the high price. A tendency for the ground connection to come loose from the cord. The factory straight cord had a shield that was as thick as you find on...

A while back, one of my more dependable second-source (surplus) suppliers closed their doors. All Electronics was consistently easy to browse and usually had something I needed. But no more. They're closed and gone forever. In fairness, a group of their employees have taken up the torch, so to...

The original RCI 69FFB4 radio used four DEI copies of the 2SC2879 RF transistors for its built-in linear amplifier. That part is a dog. The ones in this radio blew out fairly early. It sat a year or three before its new owner bought some legitimate HuaGao parts to get it back on the air. The...

This anchor weighs enough I skipped breaking my package scale with it. Gotta be 50 or so pounds. A big anchor for a big boat. The Measurements Corp was right up there with General Radio in the test equipment biz 70 years ago. Not sure if this one is quite that old, but that's the ballpark...

This collection should be legible enough to use. A diagram for a Maco product is just a list of suggestions. The one with the hand-scribbled notes has specifics from units we saw here. Better than nothing.