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Squeals are always rf getting into the mic audio

Squeal or buzz?

"The dip" usually occurs at the same point as max power out. Try tuning up by simply adjusting the controls for maximum pep while speaking. If you cant generate a tone, say "claudio", and adjust all knobs.

Are you tuning it properly?

So I did almost the same thing as you, the only difference was I don't run the ground side of the lead down the handle towards me because if by chance that insulation never failed or something it would be next to my body. I make it come through the handle and then come at the side a little bit...

Leave it alone

This was on 120v. This is on 120v

But are you measuring pep?

You shouldn't need 200w to get 1000. Thats a poor amplification factor. Usually 75-100 ish should get you there.

Having as flat and smooth as surface on the heat sink as possible is absolutely advantageous to a certain point, I find that the people that polish the heat sinks don't take into account that they can polish grooves into the heat sink with whatever their polishing with, it's very easy to do on a...

You're doing the Lord's work @nomadradio

As always, @nomadradio is correct. People get hung up with input swr. I agree we should all strive for perfect but any amplifier will pretty much show no difference in power with a perfectly flat input and a 2.0:1 input. The only time this can jam you up is with much bigger boxes. With 4w...

White vinegar or muriatic acid will clean it but the latter is very volatile and must be done quick. Dip the corner and before it fizzes away rinse immediately to stop the reaction

Before doing this, another cheap trick is just try a .01uf or .02uf cap from the alternator output to gnd, usually its case. Ive had this clear up certain whines or buzzes

I only key my boxes on Sunday on the way to church. No deadkey, swing only. I keep the city miles low

The whole nichrome wire thing is largely presented by one particular ham who possesses notoriety in the hobby. W8JI disagrees quite publicly about its merit. I think any conductor that suits the builder, especially in amateur service would likely work adequately. I use solid copper wire or...

What he said

Try wiping the spot with acetone with a clean rag, white clean rag

Eh... 800-890 per tube is good. Still inside factory specs. Even at 1kw per tube it will last forever

With a 300 inline 6, yes