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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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In Reply to: Re: deoxiting the switches posted by Bob Mc on May 6, 2007 at 06:20:29:
With speakers (or headphones) connected & unit powered ON: A smallish-value capacitor (the lil' orange 0.01uf/400v metal film from Radio Shack will do) with one lead held between thumb & forefinger & the other lead touched to the control grid lug of each tube socket should produce a hum as heard from speakers (or headphones) if the stage is OK. IOW begin this procedure from the output & work back towards input one stage at a time to discover the stage that is not passing signal. When no hum is heard, thouroughly check that particular stage (tube & all supporting circut parts). BE CAREFUL, dangerous high voltage exists on nearby tube socket lugs. Discover schematics by inserting hhscott inbetween the ubiquitous www dot dot com.
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- Simple DIY Signal tracing - Ron Oehlert 10:22:56 05/06/07 (0)
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