Anomaly said:Novice question here. How do you find out if an amp would work with 6v6 tubes?
I heard JJ's could handle high voltage the EL34 & 6L6's do?
stokes said:I read about "6V6 kits" for using in a MKIV and it makes me laugh.A 6v6 isnt made to take the voltage a Mesa amp puts on the plates.Will it work?Maybe for a while,but those tubes will die a premature death.Even if JJ's could take it,I would not use them.I've yet to see/hear a JJ of any kind that sounds good.
The specs aren't a true reflection of what the tubes will take in reality. Most tubes will take more than the original design spec voltage safely, particularly if you operate them with some precautions - like keeping the screen voltage significantly below the plate voltage. You can easily run 6V6s at over 400V safely even if you don't do this - Fender's BF/SF Princetons and Deluxes have been doing for almost fifty years and they aren't particularly hard on tubes. (Plate voltages of typically 420V.)mark2boogie said:Lies indeed ! You will burn them... Try to find the official datasheets of the 6L6GC, EL34/6CA7, 6V6GTA and compare the specs
Maybe you didn't read the MkIV manual properly then . You can use 6V6s completely safely if you set the amp to 'Tweed' power, which is equivalent to cutting the supply voltage from 120V to about 100V and drops the plate voltages to under 400V.stokes said:I read about "6V6 kits" for using in a MKIV and it makes me laugh.A 6v6 isnt made to take the voltage a Mesa amp puts on the plates.Will it work?Maybe for a while,but those tubes will die a premature death.
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