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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: RE: Did any of your changes and repairs sort it out? nt posted by Lew on June 17, 2020 at 08:42:31:
If moving the resistors like that did it, it is without any doubt an oscillation. What happens is the oscillation frequency gets rectified in other parts of the amplifier and you get all kinds of intermodulations that basically sound like noise. That EE you spoke to does not have a lot of hands-on experience with things like this.
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Follow Ups
- Good! - Ralph 09:36:21 06/17/20 (14)
- Premature judgement - Lew 08:47:27 06/18/20 (13)
- RE: Premature judgement - Ralph 09:30:50 06/18/20 (12)
- RE: Premature judgement - Lew 13:42:36 06/18/20 (11)
- RE: Premature judgement - Lew 14:11:19 06/18/20 (9)
- I think you should try it. Just keep an eye on the amp. nt - Ralph 08:36:34 06/19/20 (8)
- That's a problem... (keeping an eye on the amp) - Lew 19:30:06 06/20/20 (7)
- Can you extend the speaker cables for test purposes? nt - Ralph 08:33:21 06/22/20 (6)
- In the standard set-up there are no cables. - Lew 10:32:24 06/24/20 (5)
- RE: In the standard set-up there are no cables. - AJ 13:15:50 06/25/20 (3)
- RE: In the standard set-up there are no cables. - Lew 10:03:03 06/27/20 (2)
- RE: In the standard set-up there are no cables. - AJ 15:37:21 06/27/20 (1)
- RE: In the standard set-up there are no cables. - Lew 08:02:56 06/30/20 (0)
- You need spark plug copper wire for that - Ralph 10:39:29 06/24/20 (0)
- Nearly any amp will be noiser with no load nt - Ralph 13:57:27 06/18/20 (0)
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