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previous: Troy Nils, I've got one that I've been ... -- 2/24/2000 6:00 PM

Re: Blackface BandMaster..Master Volume?

2/24/2000 6:58 PM
SteveR	Re: Blackface BandMaster..Master Volume? "Does it have 2 octal holes that are covered? If you want to go hog wild, then you could wire it for 4-6V6's." ...or you could use the octal spaces to add a couple of tube rectifiers, leave the diode rect. and switch between them. I would use the defunct ground switch, since it's not necessary with a modern three prong plug! I'm pretty sure this can be done with a SPDT as described in Kevin O'Conner's book. And if you wanted to get real crazy, the other pole of the switch could be used to switch to cathode bias. (This would also give you a means to compensate for the required bias adjustment needed with a lowered plate voltage) One position would give you higher voltage fixed bias for stronge clean sound, and the other would give you lower voltage tube rectification with cathode bias (more voltage drop) for a "squishier" sound. With the rectifier sockets in parallel you can choose to use only one if you want. The big drawback to this, though, is that the tremolo will be unusable in the cathode bias mode. -steveR

2/24/2000 6:58 PM

SteveR

Re: Blackface BandMaster..Master Volume?

"Does it have 2 octal holes that are covered? If you want to go hog wild, then you could wire it for 4-6V6's."

...or you could use the octal spaces to add a couple of tube rectifiers, leave the diode rect. and switch between them. I would use the defunct ground switch, since it's not necessary with a modern three prong plug! I'm pretty sure this can be done with a SPDT as described in Kevin O'Conner's book. And if you wanted to get real crazy, the other pole of the switch could be used to switch to cathode bias. (This would also give you a means to compensate for the required bias adjustment needed with a lowered plate voltage) One position would give you higher voltage fixed bias for stronge clean sound, and the other would give you lower voltage tube rectification with cathode bias (more voltage drop) for a "squishier" sound. With the rectifier sockets in parallel you can choose to use only one if you want. The big drawback to this, though, is that the tremolo will be unusable in the cathode bias mode.

-steveR

Replies:

Bruce Ha ha...Ok Steve.I wonder w... -- 2/24/2000 11:27 PM