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Modular Amps
Egnater / Randall Modular Amps
Dead RT2/50
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<blockquote data-quote="666dime" data-source="post: 115094" data-attributes="member: 3086"><p>It pains me to have to do this but I need to revive the thread, my poweramp has started cutting out occasionally, on either channel just loses all its power and gain, sort of retains the volume but goes quieter when the gain dies. Also I just swapped the el34s from channel 2 to channel 1, they werent biasing up properly they had a 6-8v difference on channel 2, on channel 1 they are within 0.2v of each other, have left it running for an hour and they vary slightly, but always stay within 0.2v difference, I'm assuming that this change is normal with heat, and maybe variable power supply from the grid? Any thoughts are sure to help, as I am no expert. I should point out that the amp runs perfectly 90% of the time, but as i have a gig on friday I dont want to take the risk, and my backup amp is a 100watt SS laney, not a good backup i know but its something!</p></blockquote><p></p>
[QUOTE="666dime, post: 115094, member: 3086"] It pains me to have to do this but I need to revive the thread, my poweramp has started cutting out occasionally, on either channel just loses all its power and gain, sort of retains the volume but goes quieter when the gain dies. Also I just swapped the el34s from channel 2 to channel 1, they werent biasing up properly they had a 6-8v difference on channel 2, on channel 1 they are within 0.2v of each other, have left it running for an hour and they vary slightly, but always stay within 0.2v difference, I'm assuming that this change is normal with heat, and maybe variable power supply from the grid? Any thoughts are sure to help, as I am no expert. I should point out that the amp runs perfectly 90% of the time, but as i have a gig on friday I dont want to take the risk, and my backup amp is a 100watt SS laney, not a good backup i know but its something! [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
Dead RT2/50
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