RE: I think I fixed the problem with my Beveridge OTL DD amplifier

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Posted by Lew (A) on October 14, 2020 at 16:22:01

In Reply to: RE: I think I fixed the problem with my Beveridge OTL DD amplifier posted by airheadair on October 13, 2020 at 22:21:05:

I am almost afraid to have reported success, since the real proof of the pudding comes when I re-attach the amplifier to its speaker. I may have reported earlier that I built a dummy speaker load to use while doing this work. This consists only of two 3nF capacitors soldered end to end. The junction of the two capacitors goes the screen output of the amplifier, and the stators connect, respectively, to either end of the series pair. All of this is in an insulated box with 20KV wires terminated in HV banana plugs that go from inside the box to the amplifier via holes in the box. (I think I did mention it elsewhere.)

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Follow Ups Full Thread

Topic - I think I fixed the problem with my Beveridge OTL DD amplifier - Lew 11:50:29 10/13/20 (11)

Question about capacitor ratings for the cognoscenti - Lew 11:31:50 10/20/20 (2)

When that thing was built - Ralph 13:27:27 10/20/20 (1)

RE: When that thing was built - Lew 14:32:02 10/20/20 (0)

RE: I think I fixed the problem with my Beveridge OTL DD amplifier - airheadair 22:21:05 10/13/20 (2)

RE: I think I fixed the problem with my Beveridge OTL DD amplifier - Lew 16:22:01 10/14/20 (1)

RE: I think I fixed the problem with my Beveridge OTL DD amplifier - 6bq5 23:09:32 10/14/20 (0)

RE: I think I fixed the problem with my Beveridge OTL DD amplifier - 6bq5 14:20:04 10/13/20 (4)

carbon composition shunt resistors - Lew 09:07:58 10/18/20 (0)

We should talk.... - Lew 16:16:04 10/14/20 (2)

470K resistors - Ralph 08:50:25 10/15/20 (1)

RE: 470K resistors - Lew 09:18:55 10/15/20 (0)

Follow Ups

RE: I think I fixed the problem with my Beveridge OTL DD amplifier - Lew 16:22:01 10/14/20 (1)

RE: I think I fixed the problem with my Beveridge OTL DD amplifier - 6bq5 23:09:32 10/14/20 (0)

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