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Bias marshal valve [tube] guitar amp?
Got any info on how to set the bias on a 50W Marshall valve amp using two EL34s? Also is it normal for the anodes to glow red, not just the heaters, when the amp is not being worked - ie no instrument plugged in but power and standby on?
[I am used to working on live eqt - just don't know the measurements and settings for guitar amps.]
1 Answer
- 1 decade agoFavorite Answer
Hi,
Contact Phil Wells, Service Manager at Marshall in Milton Keynes. He's the font of all knowledge and what he doesn't know isn't worth it!
Good luck
