Recent content by AudioShockwav

I Agree I have a TS 500 that has lived a very long life, I run it at 350/360 watts out and I get compliments on the audio on the air. Seems to be the sweet spot for 4 Toshiba transistors. 73 Jeff

When they added bias,then, well, It's biased, and that means it's no longer class C. Anyway that's good for SSB. 73 Jeff

Actually Carl does build biased amps, you just have to check the box for it at the time of purchase. And I do agree You should run bias for SSB if you want to keep it clean.. With those radios I don't think you need a driver transistor, but I never liked amps with built in drivers anyway 73 Jeff

Those old Palomar TX-100 amps were really popular in the late 70's 73 Jeff

73 Jeff

There's a small window that allows editing after a post is first made, after that it's permanent. 73 Jeff

Older than the Palomar clone 25a/35a base amps with 1446's and vertical transformer's. I think I have one somewhere... 73 Jeff

We cleaned that up 73 Jeff

Riding with the King

After all these years it's still epic

Those are pass transistors used for regulation in the power supply that runs the amp. The other two MRF transistors are doing the RF amplifier work. 73 Jeff

Does anyone have one of these new Cobra's that have done the variable carrier mod? 73 Jeff

Ah Yes now I get it. I have no idea what the new AM FM Cobra radios are using for the board. Give it a minute and see if anyone here has played with the new model. Posting pictures of the board in your radio may help. And welcome to the group. 73 Jeff

I apologize, I can't make out the picture it's blurry. NPC mod maybe? Can you link to where you found the image? 73 Jeff

I don't know if you remember The user ' Hook ' but for years he talked on a a99 on a ten foot mast leaning against his garage. I worked him on SSB many times from CA to TX 73 Jeff