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Audio and Video Talk
The Vintage Audio Section
Vintage gems, extreme value for money.
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<blockquote data-quote="chrisc" data-source="post: 1099643" data-attributes="member: 746"><p>Have you had trouble with those long slider switches?</p><p></p><p>Someone brought along a variable frequency electronic crossover which had 4 of those long switches. One slider determined the slope - 18db, 24db and 48db per octave, one slider was a multiplier - 1x, 2x and 3x and the last two were low pass and high pass</p><p></p><p>It was only working on one channel and if you tapped the switch with your finger, there was a dreadful crackling</p><p></p><p>I ascertained that replacement switches had to come from the UK. So I used an industrial blower and operated the switches with the blower on front and rear. Then a good squirt of contact cleaner. Repeat this 3 or 4 times and it was fixed. The contacts are silver and corroded</p></blockquote><p></p>
[QUOTE="chrisc, post: 1099643, member: 746"] Have you had trouble with those long slider switches? Someone brought along a variable frequency electronic crossover which had 4 of those long switches. One slider determined the slope - 18db, 24db and 48db per octave, one slider was a multiplier - 1x, 2x and 3x and the last two were low pass and high pass It was only working on one channel and if you tapped the switch with your finger, there was a dreadful crackling I ascertained that replacement switches had to come from the UK. So I used an industrial blower and operated the switches with the blower on front and rear. Then a good squirt of contact cleaner. Repeat this 3 or 4 times and it was fixed. The contacts are silver and corroded [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
Vintage gems, extreme value for money.
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