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In Reply to: RE: Cheap?? That's not true at all. posted by Ralph on October 19, 2015 at 13:45:08
"Other than the heater voltage, is the 6cg7 a substitute for the 12au7?"
And, if you are a bit unsure about the heater voltage, there is always the 8CG7..
Edits: 11/12/15Follow Ups:
The pins on the bottom are different.
All the connections are the same except the filaments- the 6CG7 needs 6.3V between pins 4 and 5, while the 12AU7 needs 12V or you can also run the 12AU7 on 6.3V by tying pins 4 and 5 together and then applying 6.3V between them and pin 9.
The 6CG7 of course can handle more current having twice the plate and cathode area. But otherwise it and the 12AU7 are similar geometry.
Yes, indeed - but are easy to correct.
If your amp is hardwired, just shift the wires.
Or, are the sockets soldered to a printed board, you can cut the print, or the socket on top.
Very easy to work with, no multilayer printed boards, and you dont have to worry about ESD :)
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