In Reply to: RE: 45 SET distortion spectrum graph. posted by DaleH on December 22, 2012 at 13:17:53:
10:1 is 20dB attenuation.I have built a few soundcard probes, both active opamp based and passive and they give such attenuation.
The probe needs to be of a low impedence going into the soundcard input.
I check with my scope and the soundcard control panel for clipping at the input of the soundcard.
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Follow Ups
- RE: attenuation probe... - deathtube 667 12/22/1214:18:56 12/22/12 (25)
- RE: attenuation probe... - DaleH 15:29:48 12/22/12 (24)
- RE: attenuation probe... - deathtube 667 16:12:32 12/22/12 (23)
- dB Accuracy - Triode_Kingdom 07:51:05 12/23/12 (0)
- RE: attenuation probe... - DaleH 18:01:01 12/22/12 (21)
- RE: more spectrum graphs - deathtube 667 18:41:02 12/22/12 (20)
- RE: more spectrum graphs - Tre' 08:00:54 12/23/12 (19)
- 6v6 triode curves - DanK tubes 09:36:03 12/23/12 (14)
- One glance and I can see the triode curves for 6V6 blow 6L6 away.~nT - Cleantimestream 11:04:45 12/24/12 (4)
- RE: One glance and I can see the triode curves for 6V6 blow 6L6 away.~nT - Tre' 18:27:51 12/24/12 (3)
- RE: One glance and I can see the triode curves for 6V6 blow 6L6 away.~nT - Cleantimestream 19:04:49 12/24/12 (2)
- RE: One glance and I can see the triode curves for 6V6 blow 6L6 away.~nT - Tre' 19:37:54 12/24/12 (1)
- RE: One glance and I can see the triode curves for 6V6 blow 6L6 away.~nT - Cleantimestream 04:55:21 12/25/12 (0)
- RE: 6v6 triode curves - Tre' 10:02:07 12/23/12 (8)
- another interesting visual - Tre' 10:22:28 12/23/12 (7)
- Quasi-Triode - Triode_Kingdom 10:35:22 12/25/12 (2)
- RE: Quasi-Triode - Ray Moth 00:08:42 12/27/12 (0)
- RE: Quasi-Triode - Tre' 14:57:06 12/25/12 (0)
- RE: another interesting visual - Cleantimestream 13:01:40 12/24/12 (2)
- RE: another interesting visual - Tre' 19:15:21 12/24/12 (1)
- RE: another interesting visual - Cleantimestream 04:56:44 12/25/12 (0)
- thanks Tre (nt) - DanK tubes 13:11:31 12/23/12 (0)
- RE: more spectrum graphs - deathtube 667 08:52:56 12/23/12 (3)
- RE: more spectrum graphs - Tre' 09:01:07 12/23/12 (2)
- RE: SE 6V6 UL vs. SE 6V6 triode...for Tre - deathtube 667 14:12:08 12/23/12 (1)
- RE: SE 6V6 UL vs. SE 6V6 triode...for Tre - Tre' 15:52:27 12/23/12 (0)