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Modular Amps
Egnater / Randall Modular Amps
Power Tube Bias Settings
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<blockquote data-quote="Jeff R" data-source="post: 886" data-attributes="member: 63"><p>+100. </p><p></p><p>My RM50B combo's bias was outta whack straight from the factory, I think because it got a pair of crappy power tubes. They were horribly mismatched, I think because one was getting ready to go out - one had a red-colored "Ruby Tubes" logo and the other had a brown-colored logo, I think because the silkscreen was frying on the glass.</p><p></p><p>I also got a new pair of matched power tubes (the winged C Svet 6L6s) and the $19.00 Radio Shack multimeter, replaced and rebiased. Sound MUCH better and no problems since.</p></blockquote><p></p>
[QUOTE="Jeff R, post: 886, member: 63"] +100. My RM50B combo's bias was outta whack straight from the factory, I think because it got a pair of crappy power tubes. They were horribly mismatched, I think because one was getting ready to go out - one had a red-colored "Ruby Tubes" logo and the other had a brown-colored logo, I think because the silkscreen was frying on the glass. I also got a new pair of matched power tubes (the winged C Svet 6L6s) and the $19.00 Radio Shack multimeter, replaced and rebiased. Sound MUCH better and no problems since. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
Power Tube Bias Settings
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