In Reply to: Mystery has an end, in this case, enough is enough posted by GSH on November 16, 2014 at 21:26:35:
It has a much cleaner layout.It's too bad both have deficient power supply filters (unstable even at idle) and driver stages that can't fully drive the output tube's Miller capacitance (output impedance too high, delivery current too low, designer admits amp start to roll highs at 15kHz because of this) along with output tube cathodes that are far from fully bypassed leaving the -3db point at about 20Hz instead of the normally accepted 5Hz (to little total capacitance).
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 11/17/14
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Follow Ups
- I like this one. - Tre' 07:30:07 11/17/14 (58)
- definitions - Jim Dowdy 20:42:07 11/17/14 (15)
- RE: definitions - Tre' 21:31:41 11/17/14 (14)
- words have meaning - Jim Dowdy 18:37:12 11/18/14 (13)
- That's fine. - Tre' 19:29:22 11/18/14 (12)
- partially bypassed R(k) - Jim Dowdy 19:48:36 11/18/14 (11)
- RE: partially bypassed R(k) - tube wrangler 21:44:26 11/18/14 (7)
- RE: partially bypassed R(k) - Tre' 08:16:55 11/19/14 (6)
- Wow!!! - mach1 23:47:21 11/19/14 (3)
- RE: Wow!!! - Tre' 07:27:46 11/20/14 (2)
- what are your expectations? - Jim Dowdy 14:41:34 11/20/14 (1)
- I'm off-subject, here - Frihed89 15:30:48 11/20/14 (0)
- RE: partially bypassed R(k) - tube wrangler 10:33:35 11/19/14 (1)
- RE: partially bypassed R(k) - Tre' 12:42:50 11/19/14 (0)
- RE: partially bypassed R(k) - Tre' 20:07:10 11/18/14 (2)
- RE: partially bypassed R(k) - GSH 20:23:07 11/18/14 (1)
- RE: partially bypassed R(k) - mach1 23:58:09 11/19/14 (0)
- RE: I like this one... me too - deathtube 667 10:29:29 11/17/14 (41)
- RE: I like this one... me too - Geary Lyons 10:57:51 11/17/14 (20)
- never mind that, I can ignore almost anything for good sound... does it sound good?... - Cleantimestream 14:57:21 11/17/14 (19)
- Couple points to make for now ........ - drlowmu 12:32:11 11/18/14 (6)
- RE: Couple points to make for now ........ - gusser 13:18:53 11/18/14 (2)
- like a loudness button - GEO 15:51:06 11/18/14 (0)
- RE: Couple points to make for now ........ - drlowmu 13:33:44 11/18/14 (0)
- What's new Jeff? - GSH 12:55:52 11/18/14 (2)
- Cheap is cheap !!! - drlowmu 13:06:00 11/18/14 (1)
- I still want my free wire - GSH 23:20:12 11/18/14 (0)
- RE: never mind that, I can ignore almost anything for good sound... does it sound good?... - GEO 15:28:35 11/17/14 (11)
- Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - Cleantimestream 16:56:05 11/17/14 (10)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - GEO 17:08:14 11/17/14 (9)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - Cleantimestream 17:48:01 11/17/14 (8)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - GEO 18:19:07 11/17/14 (7)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - Cleantimestream 19:11:06 11/17/14 (6)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - GEO 19:25:20 11/17/14 (3)
- Now That's What I Call "High-End" - Mr_Steady 16:58:00 11/18/14 (0)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - Cleantimestream 20:26:25 11/17/14 (1)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - GEO 04:58:26 11/18/14 (0)
- RE: Peddling long pork is a stretch, tunneling sideways to obtain natural gas for fuel ... - Mr_Steady 19:22:09 11/17/14 (1)
- Agree - drlowmu 13:57:05 11/18/14 (0)
- RE: I like this one... me too - GSH 10:56:34 11/17/14 (1)
- The emperor has no clothes - GEO 15:35:59 11/17/14 (0)
- Me too... - drlowmu 10:54:57 11/17/14 (16)
- RE: Me too... - GSH 14:04:09 11/17/14 (15)
- RE: Me too... - drlowmu 14:24:36 11/18/14 (2)
- RE: Me too... - mach1 00:58:57 11/20/14 (0)
- RE: Me too... - cpotl 05:32:47 11/19/14 (0)
- Absolute Sound and All That Jazz - Mr_Steady 18:41:47 11/17/14 (6)
- RE: Absolute Sound and All That Jazz - drlowmu 14:52:29 11/18/14 (1)
- Go Jeff go ! set it straight for us, we need to be told - GSH 17:16:01 11/18/14 (0)
- RE: Absolute Sound and All That Jazz - GSH 19:57:13 11/17/14 (3)
- RE: Absolute Sound and All That Jazz - LinuxGuru 05:00:36 11/18/14 (2)
- And just think.... - mach1 01:18:18 11/20/14 (0)
- RE: Absolute Sound and All That Jazz - GSH 07:42:28 11/18/14 (0)
- Look at the grounding! - gusser 14:14:37 11/17/14 (4)
- RE: Look at the grounding! - mach1 01:30:00 11/20/14 (0)
- RE: Look at the grounding! 60 cycle hum ... - deathtube 667 04:14:37 11/19/14 (1)
- RE: Look at the grounding! 60 cycle hum ... - GEO 11:07:47 11/19/14 (0)
- RE: Look at the grounding! - Tre' 15:13:28 11/17/14 (0)
- RE: I like this one... me too - Tre' 10:53:35 11/17/14 (0)