Re: Question about Plate voltage to 6V6GT

Tony Hwang <dragon40@xxxxxxx> wrote in
W48Jg.481941$Mn5.371440@pd7tw3no:">news:W48Jg.481941$Mn5.371440@pd7tw3no:

Geoff C wrote:

I am converting an old amp chassis to a guitar amp. It has 6V6 pair
output and I have a 5Y3 rectifier from a 350 VAC winding. Without the
6V6's plugged in, I am getting 450 V DC at the OP tranny centre tap.
On a Fender deluxe AB763 schematic, for example, there is a plate
voltage printed on the schematic of 410 V. The data for the tubes
state a maximum of 315-350 V range, depending on manufacturer. The
Fender design appears to be at odds with the datasheets, does it not?

The original rectifier with the chassis I am rebuilding was a 80S,
but the one with it was gassy so it got chucked. I don't want to
wreck my tubes so I am being cautious. I need to resolve this so I
can move on to getting the second stage and output stages working, as
the first pentode stage is running nicely.
Hi,
No worry. Just go ahead and finish the amp.


The amp is basically built, I am just getting each stage going one at a
time, since I am not even sure if the tubes I have are all good at the
moment.

You say there is no worries, so the 6V6's will take this voltage when I
plug them in? I know the loaded volts will drop, but not sure if enough for
their safety...
.

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