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Kustom model 600-5 PA [message #24396]

Tue, 19 January 2016 10:23

LukeM
Messages: 6
Registered: January 2016
Location: Ohio

Junior Member

Good day, and thanks for this forum. I've always liked the tuck-n-roll Kustom equipment. So far, all I've purchased is one of their US made guitar amps (a KLA-25A, which gets used on a regular basis).
At a recent estate sale, I picked up a model 600 8 channel PA head, and 2 non-Kustom columns. This beast weighs close to 100 lbs!

I took it out of the case (some tears in the material, consistent with the early 70s vintage), took off the metal lid, and looked around.
There are a couple of resistor arrays for the control board (to get + and - 15v from the power supply, and for the lights for POWER and POLARITY). The wires looked pretty burnt, so I replaced the longer runs. I think the zener diodes on the control board are regulating +/-35v down to 15. That seems like a bit of a strain. I may investigate re-configuring the regulator to something a bit more robust. I did shoot some DeOxit on all the controls, and I'll get my friend's 1/4" wire brush to run through all the jacks. Date code on some components reads 1972.

On the power amp boards, I don't see any burnt or stressed stuff. All the TO3 cans look original, with Kustom numbers on them. So far, so good.

Bonus: 2 pages of schematics inside, that may have been glued to the metal top. I tried scanning them, but as old as they are, they didn't come out very good.

No, I haven't powered it up yet.

The column speakers are not tuck-n-roll, and both will need some re-wiring. Looks like both have 2 15" speakers in them. One of the speakers is a Jensen Special Design. The other has a square magnet, and might be a 4 ohm impedance. The other one I haven't been able to look into.

Thanks for letting me babble, and I'll update this as I make progress.

Luke M

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[Message index]

		Kustom model 600-5 PA By: LukeM on Tue, 19 January 2016 10:23
		Re: Kustom model 600-5 PA By: Iowa Boy on Tue, 19 January 2016 11:06
		Re: Kustom model 600-5 PA By: LukeM on Tue, 19 January 2016 11:16
		Re: Kustom model 600-5 PA By: Iowa Boy on Tue, 19 January 2016 12:39
		Re: Kustom model 600-5 PA By: chicagobill on Tue, 19 January 2016 12:46
		Re: Kustom model 600-5 PA By: LukeM on Tue, 19 January 2016 13:04
		Re: Kustom model 600-5 PA By: stevem on Tue, 19 January 2016 13:12
		Re: Kustom model 600-5 PA By: LukeM on Tue, 19 January 2016 20:27
		Re: Kustom model 600-5 PA By: Kustom_Bart on Tue, 19 January 2016 23:37
		Re: Kustom model 600-5 PA By: Iowa Boy on Tue, 19 January 2016 14:24
		Re: Kustom model 600-5 PA By: Iowa Boy on Tue, 19 January 2016 23:27
		Re: Kustom model 600-5 PA By: Iowa Boy on Wed, 20 January 2016 00:46
		Re: Kustom model 600-5 PA By: LukeM on Wed, 20 January 2016 10:40
		Re: Kustom model 600-5 PA By: stevem on Wed, 20 January 2016 06:29
		Re: Kustom model 600-5 PA By: Iowa Boy on Wed, 20 January 2016 13:06
		Re: Kustom model 600-5 PA By: Kustom_Bart on Wed, 20 January 2016 14:36
		Re: Kustom model 600-5 PA By: Iowa Boy on Wed, 20 January 2016 17:00
		Re: Kustom model 600-5 PA By: Kustom_Bart on Fri, 22 January 2016 00:07
		Re: Kustom model 600-5 PA By: stevem on Fri, 22 January 2016 06:45
		Re: Kustom model 600-5 PA By: Iowa Boy on Fri, 22 January 2016 11:49
		Re: Kustom model 600-5 PA By: Kustom_Bart on Fri, 22 January 2016 12:47
		Re: Kustom model 600-5 PA By: pleat on Fri, 22 January 2016 19:09
		Re: Kustom model 600-5 PA By: LukeM on Fri, 22 January 2016 20:53
		Re: Kustom model 600-5 PA By: stevem on Sat, 23 January 2016 06:04

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