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Weird HT-Dist intermitten fault

Posted: Thu Jul 14, 2016 11:50 am
by BongoInDK
Bought a faulty HT-dist pedal. Thought it would be an easy fix, but its getting on my nerves

it only happens after the pedal has been without powersupply for several days.
After connectiong it, it lights up, but NO sound. Disconnect power and reconnect, and dada it works for days...

But when leaving it on the shelf for a while the fault comes back
any ideas suggestions ? I am thinking the highvoltage, not getting high enogh, bad electrolytes ???

Suggestions are welcome
have changes the tube/valve, cleaned it. Havnet yet done a lot of measuring in it, as i am missing a schematic