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The Classic 400 Finally finished!!!!! (long post)


Bluescout

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After cleaning a lot of broken tube glass out and replacing the tubes, the head ran great. I cleaned the hell out of the amp, the chassis, the grills, the chrome and everything because I'm OCD that way. I ordered parts from Peavey and they arrived promptly. I straightened the front and rear grills and set to replacing the broken pots:

 

pre_surgery.jpg

Before the surgery

 

 

open_amp.jpg

Removed the tubes and flipped it over on the bench.

 

 

faceplate_off.jpg

I removed the pot nuts (said nuts) and got the faceplate off

 

 

switches_leds.jpg

The power and standby switches. These LEDs were a pain to get indone

 

 

controls_board.jpg

Here's the controls board where I've labeled and yanked all the plugs off it.

 

 

controls_board_out.jpg

Here's the controls board out with a broken pot on it.

 

 

new_pot.jpg

Here's a new pot installed next to an old one. If I'd known they would supply metal shaft pots (said shaft) I'd have replaced them all.

 

 

almost_done.jpg

Here it is almost back to original glory

 

 

finished.jpg

And...... we're done!!! The all new knobs look much better and stay on the shafts (shafts again) much better. I may make a metal cover for the delicate end of the amp to protect the controls during transport. I re-biased the tubes just before re-assembly.

 

 

 

I used automotive clips on the front grille to use the original screws, the grille is just set back 3/4 of an inch. I may go with the original cooling design by adding a thin piece of plexiglass behind the front grille because I feel that fan blowing out the front and not by the tubes.

 

Do I officially qualify for Tube Amp club or anything yet?

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Originally posted by HORSE

Very impressive. Do you have a background in electronics to do all this? Or were you using a lot of common sense?

 

 

 

Thanks, I've always been talented like that. I was a mechanic for a long time and now I'm a computer geek. I disassemble a lot of laptops.

 

The trick I figured out was to disassemble them UPSIDE DOWN. Everything slides nicely that way.

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