The Centurion does NOT use a HV voltage doubler, at least not in the 422B.
I use a Peter Dahl in mine and had them wind a few extra secondary turns to
give me 2400VAC.
Dan -- N3ND
According to the Peter Dahl website,
http://www.pwdahl.com/dahlcatalog/hamtrans011404.html#T, they have two
transformers. $350 each for the Titan. One has a higher secondary HV
winding than the other. They are 1270 VAC @ 1 amp CCS and 1800 VAC @ 1.2
amps CCS. Both weigh 46 lbs. and the same price.
For the Centurion, $325 and the Dahl website lists the HV secondary as 2225
VAC @ 0.5 amps CCS. Now, that raises a serious issue. The Centurion uses a
voltage doubler in the HV circuit. That configuration with the above
transformer would be very unsatisfactory as a direct replacement as the
rating of the filter caps and the tubes would be greatly exceeded.
Otherwise, voltage twice what it should be and current about 1/2 of what it
should be. If the transformer data is correct then the rectifier circuit
should be changed to a FW bridge.
I'd get clarification from Peter Dahl as to the exact specs for these
transformers before I put one in my amp.
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