amplifier

Hi all, A friend of mine recently imported a 4 pill amp from a builder in the US and has managed to pop pill number 1 and blow the base emitter 10 ohm resistor. He contacted the box builder and was told that replacing pills 1 and 2 with a matched pair and replacing the BE resistor should be all...

I have been restoring a KLV 550 (Rev 5) with no output and ive run into an issue. i get continuity between the wraps and the metal rods on T3 and i believe this is what is dragging the output down/holding it back. i have changed the wire wraps just incase it was shorted in the metal rods, does...

selling my vintage hey ham radio with lots of extras and bells and whistles if you are interested in a certain component or peace please message me with what you are looking at and your best price you are offering+shipping or i would take $1,300 for everything in the picture this is a beautiful...

I recently acquired a junk rci 2970n2 “I think” had a 2950 face but inside was a 2 pill amp section. The radio section has had parts scavenged and was beyond repair. However the amp section 2 Toshiba 2290 was untouched. So my question is has anyone ever used this amp section on a radio that it...

Hey guys i just wanted to pick your brains on these tunes. Does/has anyone know/experimented on what else can be done with these tunes besides radio broadcasting and mri machines?

So I'm looking for a new 110V base amp that's biased (and filtered?), nets 1Kw-1.5Kw PEP on SSB and is of good build quality from good quality parts. I know there are a few commercial choices out there and I'm leaning towards Carl Built, but what are some other good options? I'm looking to spend...

Hello all Four-Two-Zero in New Jersey waving a hand ! (not Four-Twenty) not that there is anything wrong with that lol . I have been running this Varmint 450 XL for years and have talked all over the world on everything from a Horiz Dipole , J Pole to a home brewed 3 element beam and she is a...

Looking for a new amp for the mobile. Looking for suggestions for a straight 6 or 8 transistor amp for 11 meters.

Henry 2KD-5 Linear Amplifier Selling a used Henry 2KD-5 Amplifier that recently had the following done: Replaced bridge rectifiers (8) NEW bleeder resistors (8) NEW 450 volt capacitors NEW 220 volt electrical plug Amplifier is in good working condition. 10-80 meters. Never had any mods...