Recent content by boog351

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...

Appreciate the replies nomad and Dave. The amp isn't mine, a friend of mine has it, and your replies are pretty much what I told him. I just wanted a little confirmation because I'm not familiar with the 421 hg parts, or obese young man amps. A quick goog and I saw the originals being 100w pep...

What would be expected out of a straight 4 pill amp running 4 hg mrf421 at 14.8v, builder suggested an 80w dead key from the amp and it should have a pep of around 800w running a stryker 955 into it.

Low audio and no forward swing, can be heard on a close receiver, mic gain makes a difference, variable power works, modulation vr in the radio does nothing, don't know if the limiter was removed, I can't find a schematic, and am new to the surface mount stuff with these radios, am regulator...

Anyone know where to find a schematic for this radio? I know there similar radios, but I haven't found anything specifically on the ept990013b board. Been out of the hobby for a few years and the forums I used back then seem dead. So, this is my first post here. The problem I'm trying to solve...