Re: 10 PP amp

K&K Audio / Lundahl Transformers

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In Reply to: 10 PP amp posted by Jon Lane on May 22, 2005 at 10:09:09:

If I were going to build a PP amps from 10's, I'd stack them ala SRPP and drive them with a concertina phase splitter, plate to the top tube, cathode to the bottom.
Then take the signal off the junction of the two output tubes and through a blocking cap to a 5K parafeed OT.
Doing that with 6B4G's at the moment and it's a very nice compromise between SET and PP sound.
Run in class "A" and remember that the two output tubes are in series for DC but parallel for AC. With luck, and hum pots, you may well be able to get by with AC heaters.
As the two output tubes are in series, you'll require fairly high B+.

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Follow Ups Full Thread

Topic - 10 PP amp - Jon Lane 10:09:09 05/22/05 (9)

Re: 10 PP amp - Ivan303 20:44:57 05/29/05 (0)

10s are great - Ed Sawyer 20:13:24 05/26/05 (1)

Re: 10s are great - Jon Lane 16:34:27 05/28/05 (0)

Why not consider parallel SE? - Brian C. 13:48:20 05/24/05 (0)

Re: 10 PP amp - KevinC 09:49:00 05/23/05 (4)

Re: 10 PP amp - Jon Lane 19:48:47 05/23/05 (3)

Re: 10 PP amp - KevinC 04:33:47 05/24/05 (2)

Re: 10 PP amp - Jon Lane 13:27:06 05/24/05 (1)

Re: 10 PP amp - KevinC 09:52:44 05/25/05 (0)

Follow Ups

Re: 10 PP amp - Ivan303 20:44:57 05/29/05 (0)

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