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previous: Tony Or better yet, would this transform... -- 11/24/1998 12:32 AM

Re: Bedrock questions (please read)

11/24/1998 7:09 AM
Whit	Re: Bedrock questions (please read) Tony, Never seen a Bedrock schematic, either on the web or in the Tube Amp Book, but they must exist somewhere (?)... ... as for the iron, I'm sure the OT will be in the ballpark for a quad of 6V6's, but the PT might be kickin' out a bit more VAC than the 6V6's would like to see. If you can get in there and measure it, look for around 650 - 700 VAC max across the HT leads, assuming capacitive input filtering will be used. If the measurement is above 700 VAC, then you could consider either choke input filtering, or use the old zener diodes on the CT of the PT trick. I'd be tempted to use what I had for sure... ... Whit

11/24/1998 7:09 AM

Whit

Re: Bedrock questions (please read)

Tony,

Never seen a Bedrock schematic, either on the web or in the Tube Amp Book, but they must exist somewhere (?)...

... as for the iron, I'm sure the OT will be in the ballpark for a quad of 6V6's, but the PT might be kickin' out a bit more VAC than the 6V6's would like to see.

If you can get in there and measure it, look for around 650 - 700 VAC max across the HT leads, assuming capacitive input filtering will be used. If the measurement is above 700 VAC, then you could consider either choke input filtering, or use the old zener diodes on the CT of the PT trick.

I'd be tempted to use what I had for sure...

... Whit