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Thanks. I understand what you mean, but I do believe if the same issue were to reoccur, the fuse would still blow, even if it is a 5 amp. I know it's 1 amp higher than the standard, but i can live with that :) As for the resistor, it was still reading okay on the meter, but was starting to...

I hope so. I replaced the 2 watt 100ohm resistor with a 5 watt 100 ohm resistor, and the 4 amp fuse with a 5 amp. Also one of the tubes stopped working, so I'm using the remaining 4 for the output and one I bought elsewhere for the driver. Seems all good so far..

hmmm.. still seems to be happening once things get hot. This time I did smell something burning which was R8, 100ohms 2watts. I'll have to replace that with something bigger. Anyone got any similar experiences? I'm not driving it any harder than I have been since I first got it. The tubes get...

Ok, checked all the 450volt caps and some others, they looked alright. EDIT: removed all tubes and the fuse still blows :/ EDIT2: It wasn't just blowing the fuse, it was blowing the crap out of it, like there was a direct short or something. I don't know how I fixed it, but I got it to not...

Thanks for the quick response. I'll check them out. What I forgot to ask was, does it seem unlikely it would be the tubes? As i mentioned, while something was popping, the tubes were still giving full output, so I have a feeling they're ok. Even if they're not, money's no problem as replacements...

Hello. For some reason my KLV1000 decided to play up after months of working fine. At first I thought I heard a popping noise, but the power output and SWR remained unchanged, so I continued using it. Shortly it happened again, but still no change in power, so I thought nothing much of it...

A question regarding the IMD graph, it shows the lowest levels at 60watts at 12.5volts. Does this low-level IMD apply only to 60watts at 12.5volts, or 60watts at any voltage?

I hope not. I'm tempted to try one of these, but I'm just worried that should something go wrong, it'll be hard to find replacement transistors. I wasn't actually considering a MOSFET design, but it's got me curious to see what's out there now.

Hi guys.. new here. Been reading and learning heaps here lately. On the lookout for an AB amp, I recently came across an ad for a Palomar FET250 Class AB1 Amp. From my understanding, Palomar was a company from way back, and the Palomar name is being carried on by some other mob. But I...