DAM MKII Attack pot problem

Schematics, layouts & other technical mumbo jumbo.

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Chi-LA
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DAM MKII Attack pot problem

Post by Chi-LA »

Hi all - working on the rehab of #110 - all working except the attack pot seems to be stuck at full, ie no gain attenuation. The wiring looks fine - what could the problem be?

Before/after pics below
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Chi-LA
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Re: DAM MKII Attack pot problem

Post by Chi-LA »

Pics…
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Tin Shack King
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Re: DAM MKII Attack pot problem

Post by Tin Shack King »

Wow! Is that the original box, and if so, how did you remove all the gunk?
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Re: DAM MKII Attack pot problem

Post by 2guests »

Replace the pot with a new one that doesn't look like it went down with the Titanic?
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Chi-LA
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Re: DAM MKII Attack pot problem

Post by Chi-LA »

I used a steel bristle brush to remove all traces of oxidation then spayed with matte silver rust cap. But had to replace both pots and the switch. Ready to finish it up as soon as I suss out the attack pot…
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Chi-LA
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Re: DAM MKII Attack pot problem

Post by Chi-LA »

Pots are brand new original type alphas…
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jerms
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Re: DAM MKII Attack pot problem

Post by jerms »

make sure you have a solid ground connection for the pot, and no breaks in the copper strips... test continuity of the leads to the pot
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Tin Shack King
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Re: DAM MKII Attack pot problem

Post by Tin Shack King »

Great job on the restoration! It should be a great pedal when you're finished.
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squarewave
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Re: DAM MKII Attack pot problem

Post by squarewave »

Someone must have really hated that thing
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Spook
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Re: DAM MKII Attack pot problem

Post by Spook »

Does it work ok when its just the circuit, not insde the box ?
:pazuzu:
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