I think the answer is ?

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Posted by Interstage Tranny (A) on February 27, 2012 at 14:04:19

In Reply to: I think the answer is yes posted by Tre' on February 27, 2012 at 10:06:08:

The powered by the amp Pilot preamp, model 210, requires a filament AC Voltage of 24V, IIRC; not simply more current drawn off the 6.3V AC fil. winding of the amp. The Pilot 232 and 260 amps' power trans have the 24V winding in addition to the 6.3V winding. The power trannies from Pilot were not cool running; even without the preamp being powered. However, like Tre, I don't think .3A of 6.3V will blow the power tranny. It might not even make any difference to the power tranny. If the 6.3V changes to 6.1V, at the same "in from the wall" voltage, then I would be concerned. Otherwise, I would keep using that 12BH7 or 6CG7...

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Follow Ups Full Thread

Topic - 12bh7 substitution in pilot sa 260 - pennyford 07:59:20 02/26/12 (14)

RE: 12bh7 substitution in pilot sa 260 - pennyford 18:23:23 03/3/12 (0)

RE: 12bh7 substitution in pilot sa 260 - Eli Duttman 18:06:38 02/27/12 (0)

RE: 12bh7 substitution in pilot sa 260 - Cleantimestream 11:06:11 02/26/12 (11)

RE: 12bh7 substitution in pilot sa 260 - pennyford 18:57:32 02/26/12 (10)

RE: 12bh7 substitution in pilot sa 260 - Cleantimestream 00:13:40 02/27/12 (5)

RE: 12bh7 substitution in pilot sa 260 - pennyford 04:48:51 02/27/12 (4)

RE: 12bh7 substitution in pilot sa 260 - Neff 20:29:12 02/27/12 (0)

RE: 12bh7 substitution in pilot sa 260 - Tom Bavis 08:14:14 02/27/12 (2)

Rectifier substitutions in Pilot SA-260... - Interstage Tranny 14:21:38 02/27/12 (1)

RE: Rectifier substitutions in Pilot SA-260... - Eli Duttman 17:26:20 02/27/12 (0)

RE: 12bh7 substitution in pilot sa 260 - Eli Duttman 19:10:59 02/26/12 (3)

I think the answer is yes - Tre' 10:06:08 02/27/12 (2)

I think the answer is ? - Interstage Tranny 02/27/1214:04:19 02/27/12 (1)

I messed up, again - Tre' 16:07:42 02/27/12 (0)

Follow Ups

I think the answer is ? - Interstage Tranny 02/27/1214:04:19 02/27/12 (1)

I messed up, again - Tre' 16:07:42 02/27/12 (0)

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