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Modular Amps
Egnater / Randall Modular Amps
Help with RM50?
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<blockquote data-quote="JonnyB" data-source="post: 156125" data-attributes="member: 2779"><p>Hi, I loaned out my RM50 to a buddy and he managed to break it. There is a very quiet distorted sound present when turning the master up whilst playing and one of the tube lights was on. When I got it on the bench I discovered one of the fuses was blown so I changed it along with both output tubes to known good ones. On powering up again I have the same quiet distorted sound. Tube 1 has a normal bias reading, tube 2 has zero volts bias.</p><p></p><p>Any ideas where I should start looking for issues? Could a failed tube have taken out the screen grid resistor?</p><p></p><p>Any help gratefully received!</p></blockquote><p></p>
[QUOTE="JonnyB, post: 156125, member: 2779"] Hi, I loaned out my RM50 to a buddy and he managed to break it. There is a very quiet distorted sound present when turning the master up whilst playing and one of the tube lights was on. When I got it on the bench I discovered one of the fuses was blown so I changed it along with both output tubes to known good ones. On powering up again I have the same quiet distorted sound. Tube 1 has a normal bias reading, tube 2 has zero volts bias. Any ideas where I should start looking for issues? Could a failed tube have taken out the screen grid resistor? Any help gratefully received! [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
Help with RM50?
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