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Modular Amps
Egnater / Randall Modular Amps
What do I bias KT 77 tubes at?
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<blockquote data-quote="warmachine67" data-source="post: 155607" data-attributes="member: 3696"><p>You can bias them like regular EL34's, but they will be running a little cool. </p><p></p><p>I ran some kt77's for a while and I think my research turned up 35-40mV so that's what I set them at and they seemed to be fine. </p><p></p><p>This was in an RM50 btw</p><p></p><p>You may already have or already know, the EL34/KT77s need a 400mA fuse where a 6L6 type tube used a 250mA fuse. Jaded faith told me a 500mA will do no harm if they are easier to find than a 400mA.</p></blockquote><p></p>
[QUOTE="warmachine67, post: 155607, member: 3696"] You can bias them like regular EL34's, but they will be running a little cool. I ran some kt77's for a while and I think my research turned up 35-40mV so that's what I set them at and they seemed to be fine. This was in an RM50 btw You may already have or already know, the EL34/KT77s need a 400mA fuse where a 6L6 type tube used a 250mA fuse. Jaded faith told me a 500mA will do no harm if they are easier to find than a 400mA. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
What do I bias KT 77 tubes at?
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