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No probs, I'll scan them in after work and upload it here.

I have the circuit diagrams (main and pll box) and parts location drawings for both too, can scan and upload them if you can't find anything yourself. Have the owners manual too if you want it. They are in good condition so should scan up nicely. They are for the 18 channel australian...

Seconded on the micro and one of those little purple Si5351 boards. We had a Kraco base done that way a couple of years back, works great and covers 120 channels (40 up and 40 down) with 10k and 5k drop switches. It's been my daily driver base since then, works great and less noise than the...

One of the techs we used to use was working on something similar for the Uniden HR2510. They had a lot of spare time at the tail end of the COVID lockdown era and were working on a replacement display and controller combo to give it things like repeater splits, scanning, user programmable...

The newer President McKinley has LCD screen too, probably because it's cheaper than a real meter / LED display. May last OK in colder weather areas, but will prematurely die here (Australian desert).

My 1998 Toyota Landcruiser's black and white screen still working fine 26 years and 325,000 km (about 200,000 miles) later. Wife's 2013 Toyota Corolla has a fancy color one, that one is still working too, but only half the age and mileage of mine. Had two Bearcat 980's purchased new. Screen...

Didn't know he was on the forum, thanks for that. Fixed mine instead of buying a 980 or McKinley as radios with LCD screens seem to die a premature death out here (australian desert). PC122 was fixed when covid was in the news every day so 2021 or 22, still going strong and no crappy LCD to...

These were a junk quality Korean made AM that were common here in Oz for a year or two in the mid/late 80's. Imported and sold here by a long defunct auto parts store chain that mostly sold stuff like cheap car tools, car polish, and seat covers. There were quite a few radio shops around at...

Sounds exactly the same way mine died. Was working ok, then stored for a few years, turned it on again after taking it out of storage, dead. Transmit ok but audio was a bit muffled, no receive and signal lights go up on their own like its transmitting, but it happens even without a mike plugged...

Not the case, these things work on receive equally well. Got an Oz version of this thing in my GE cybernet, if I cop a lot of crackle splatter from another channel I flick the mod on and they come thru clearly. I then often ask what channel they are on if I want to keep talking to them...

This one? Shamelessly borrowed from another forum a few years back.

You need to add a small circuit to the radio, earlier thread on this subject (scroll down just over half way for the schematic of the added board): https://www.worldwidedx.com/threads/transmitting-on-15-channels-at-the-same-time.262096/

Not going to blow up like that, 3 volts at 0.033 milliamps is not even going to be enough to light an LED. Power from the aftermath of Taco Bell will be thousands of times higher than these "batteries".

100 microwatts per cell, you're going to need a lot of them to power your base station - 10,000 of them for every watt of power you need. Useful for things like spacecraft and satellites, but that's about it. Nice story though, does the rounds of the mass non-technical media press every few...

Hi Pierre, I've got two of these (both the 40 channel version), one working perfectly and in really nice condition, the other one a bit beat up but complete, not working (lights up and makes a hiss but no tx or rx) for parts or repair. Also have schematics on paper. Make an offer, don't want a...

Controller was an Arduino, available on amazon or ebay, synth came from QRP labs. The 27MHz crystal in the kit would have interfered with channel 4 and also was not quite stable enough for SSB, so it was removed and a 25MHz TCXO (also from QRP labs) was fitted in its place. No interference and...

Do the full DDS conversion and have all 40 or a ton more if that's your thing Cobra 29 channel block Channel display wired up to it DDS board fitted (visible under covers just behind the toggle switches) Finished radio ready to use. NB switch rewired for 5KHz dropper ANL switch rewired...

Tech said the same thing, as long as the programmable thing only injects into the "pll downmix circuitry" then it will be as clean as the original. Asked them about doing a cybernet ssb with the same method and was told not recommended as the unclean signal also goes into the radios rf...

Local tech we use here has been using those things for a few years now to do exactly that, check out their page on the transmission1 site: https://www.transmission1.net/viewtopic.php?t=56500 SSB radios done this way have a clarifier range of +/- 1 to +/- 15 kc, you just program the range you...

Yep, wasn't going to say first but obvious to anyone thats had work done there. They are still doing this stuff, but have slowed down quite a bit since COVID. Some examples from them of using arduinos in old radios... Kraco base station: https://www.transmission1.net/viewtopic.php?t=56106...