Recent content by boog351

Makes sense now, I hadn't put it together that it is working, just that it was just acting up between the movement of being unkeyed and ptt fully down. Like you said it seems like a problem with the ptt button if the lock doesn't act up, not sure if the throw would make a difference or not. I'm...

I'd check continuity with a multimeter between pins 5 and 6 of the mic plug while the mic is keyed to rule out the mic's switch. Maybe an rf issue? don't know what mode you're on try turning the power and or mic gain down and see if either make any difference.

I just like to tinker with this stuff, I'm ok'ish at finding bad parts, can fumble through a schematic and get the gist of what's going on. I've repaired a lot of stuff, more music related stuff though, amps, pedals, etc. I'm legally blind so I'm home a lot and it gives me something to do. I do...

Yeah I just repaired a bj300 that had the resistor cooked that pulled it down for low power, some super cobra amp that had the transistor in the keying circuit fried, this klv that has obviously been very hot, as in coating melted off of the board hot, and have a d&a pdx 400 waiting that won't...

Is it safe to assume that the gates should be around 3.5-4v similar to a 520. And I'd say your guess is probably accurate, they'll never admit it, but the poofed parts don't lie.

From what I've found the problem was fixed in the 756pro and later models, the part is a driver for the pa section, in previous models, the 756 and 746/746pro, that part was prone to overheating, icom claimed esd issues as well,. The part dissipates heat through it's ground legs, it's an 8 pin...

It's a no go getting the part from icom, they did give me a few suppliers to check with though.

Anyone have any experience with these, I've seen a few threads on here, same as a firebird 500, 2 transformers that are prone to failure, 1x3 6lq6. Mine looks different than what I see doing a Google image search, silver face with woodgrain along the bottom. It seems to work fine, hi low has...

Thanks, I'll try that route, from what I've seen the original NEC part isn't made anymore, they do make the same part in a smaller package, and I've seen a 3 pin part suggested, but I'd rather go withe the original.

Pretty common problem, dead ic-151, mine has signal on the input, dead output. Does anyone know of a reputable source for the UPC1678G ? My usual sources, rf parts, mouser, digikey didn't have it. I don't like buying parts from ebay, 2 listings from 1 seller as of now.

I've been asked to look at this thing, looks like an old k1313. Klv250, rm italy mosfet amp. I'm a glorified tinkerer, tinkerist? I can solder and have some old test equipment, and some knowledge, but far from an expert, and not and amp guy, so please forgive any ignorance. I don't have much...

Thanks again for the replies, it's been a big help. I have a few projects coming up I might ask for a little guidance on. I'll start new threads for each of those though. A few tube amps and a rm that's been blown up a few times. I had thought about digging into that noisy switching power...

I think he's been setting it to 80

I'll have to take a closer look at the video, maybe I can get him to send it to me and share it if anyone would be interested. Another quick ?? As is I think it's ok running a low dk into it 2-3w and a pep of around 40 or so shouldn't hurt it, I wouldn't run a 100w+ radio into it. Would that be...

I think he's ok with the power, he's just upset about the price he paid to get it. $500 something foe the amp itself and some 100amp switching power supply the guy convinced him he needed to run it (but who doesn't need a good power supply). That's after he bought a Chinese 150amp switching...