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Is there a difference in the wiring between the regular mic and these? Looking for a mic for a 90s Cobra 18 Ultra (not the ST models).

Ok, I have been reading the "good book of K0BG", and bonding, common modes, etc. This has given rise to a few questions, thoughts, ponderings. My 78 CJ5, with fiberglass tub, fenders, windshield frame, steel hood, and steel grille, is the vehicle. If has a Mustang 5.0HO with Ford factory EEC-IV...

I have the MK2 version, with the PB010AB board. It doesn't have a PA jack, but the CW key jack instead. I've tried across speaker ground to chassis ground, RX to ground, ext speaker ground to chassis, and no luck. I plan to put it on a switch, as I only want to use it to monitor setting mic...

I have an amp I put an old brushless computer ps fan on, but want to make it thermally switched. I found some thermal switches online, was thinking to use thermal conductor tape to attach it. Would you put that right on a pill, or on the external heat sink? Is 45*C sufficient?

As the header say, I want to eliminate the 5-pin so I can use my regular mics on a TRC-465. Looking ar the back of the socket, there is a small board attached. Removing the socket, you can see pin number on the socket, and with the 5 pins arching over the top they are 3 5 2 4 1 and then the...

I recently found the plastic screw was broken off that holds the chip to the chassis. It seems I may have lost the the mica (?) insulator sheet that went under the nut. Where can these be found? Im guessing these are not electrically insulated on the heat sink tab, which is why they have the...

I need to run more coax, both mobile and base. Found a source for Tram 8x-B coax, pretty decent price. Anyone use this, know if it is worth it? I know for base that LMR is better, but a 500' spool of coax for under $150 is tempting.

Anyone have any idea on what that is for? I tried searching, but no luck. The only hit I found the answer was the same as if you crossed a rhino and an elephant... :coffee:

Looking at options for a SSB radio, like the Uniden PC122, President AX144, etc. How good are these options? Are they worth the $60+ they are getting on eBay?? I know they're older, so who knows what's been done to them, what shape caps are in.. I saw one untested, no cords, "estate sale", dirty...

I have found some different things listed for these, one is that you just replace the final with a 1969. According to the schematic from CBtricks I saved, it looks like the driver, TR8, is a 1957. I tested the 1969 before installing, and it showed a Hfe of 143. My output went from a 2-5W to a...

I know a freq generator with a certain output is the standard, but is there a way to do it if you do not have one? I remember reading people using audio thru the mic instead of a signal gen to set certain parts. I do have a 'scope, and I know you adjust until you have the highest reading with...

Ok, somehow I mixed up the wires. The meter would go backwards as someone would talk, so I switched the wires. Now it goes full swing as soon as I turn the radio on. I have a red, a green, and a black. Originally I had red and black on (+) of the meter, and green on (-) terminal. I put Black...

I saw a kit a few months ago to put the blue display in these radios, but now I cannot find them. They were the segments for the freq counter, channel display, and blue lenses for them. Anyone see them anywhere, or know where to find them?

Just acquired this radio, it is a PB010AB board. These pieces have been soldered on, back by the B754 transistor. Any ideas? My first thought was a swing kit, but usually that is over a missing jumper location. This is across some ceramic caps I think. Hard to tell, as the pieces are all crammed...

Ok, just because I come up with these brilliant modifications I'd love to do to my radios, but have no idea how to do it, I thought I'd throw the idea out and see if anyone can help me out here. I have my 3 Galaxies, a DX44V, DX88HL, and a DX939. Talkback being an issue with feedback, but would...

Is it possible to do? I like the touch of echo, but I want to actually have my audio up without the feedback from the talkback feature. I'd like to put a switch on it so I can have it work when adjusting echo but off for normal operation. Is this possible? Any help on which resistor it is they...

A quick description of my setup. Galaxy 939 with a Galaxy DX88HL, strapped together with steel strap, mounted on the "bottom" of a milk crate on its side. A Superstar 400 AB1 class amp mounted to the "top" of the crate above the 2 radios. Using a separate D104 Silver Eagle for each. I have a...

OK, I am tired of the drift and waiting for it to preheat before use, and want to put a "heater" in there to preheat the frequency section so it is always warmed. Where is the best place to put one? I'm thinking a light bulb, of the 194 style, with the socket hot glued to the top cover just...

I was at the local bolt and nut house, and saw they had this spray on the shelf. I've been thru a few stereos and one CB so far, as my CJ5 is not the most waterproof, even with the top on. I was curious if I was to spray this on both sides of the boards inside, if it would help if the windshield...

I'm hoping someone on here has a good minimally invasive solution here. I have a 2010 Focus, and I have mounted my Lil Wil on the trunk lid, running the coax down the front edge into the trunk then up to the radio. The issue I have is going thru the car wash the other day I had a lot of water...