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Modular Amps
Egnater / Randall Modular Amps
Noise in RM22. Help!
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<blockquote data-quote="tschrama" data-source="post: 145458" data-attributes="member: 3457"><p>I am thinking bias cap leakage, of tube going bad....</p><p></p><p>Pull the preamp tubes, one by one, powering up the amp after each removal. did one of the preamp tubes cause the noise? Is there still startup noise after all the preamp tubes are removed?</p><p></p><p>Has the amp fixed bias? Then you pull one of the power tubes and check for startup noise. Put it back and pull the other and check for startup noise.</p><p></p><p>Report back with you findings.</p></blockquote><p></p>
[QUOTE="tschrama, post: 145458, member: 3457"] I am thinking bias cap leakage, of tube going bad.... Pull the preamp tubes, one by one, powering up the amp after each removal. did one of the preamp tubes cause the noise? Is there still startup noise after all the preamp tubes are removed? Has the amp fixed bias? Then you pull one of the power tubes and check for startup noise. Put it back and pull the other and check for startup noise. Report back with you findings. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
Noise in RM22. Help!
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