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In Reply to: RE: Hmm.... posted by patmcsween@cox.net on July 03, 2009 at 06:06:12
There is 6.3V AC going to the heater on the 12AT7, but I don't know if the transformer supports higher current than the 12AT7 uses. That is a question for Paul Joppa.
Remember, YOU are the only one who needs to be happy with the sound of your system
Grainger Morrison
There Is Only One (Grainger Morrison, it seems)
Both the Paramount and the Paramour II power transformers are rated for maximum 1.2A rms AC current.
The 6.3v winding should have close to 1A of AC current available (just enough for a 6DN7).
IIRC the stock driver draws 0.3A for the heater. That leaves 0.7A for the timing circuit.That is if you are using the 12AT7 for the driver.
And follow Caucasian Blackplate's advice concerning what to switch.
Remember, YOU are the only one who needs to be happy with the sound of your system
Grainger Morrison
There Is Only One (Grainger Morrison, it seems)
Edits: 07/04/09
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