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In Reply to: RE: Curcio vs Dyna? posted by drlowmu on August 6, 2012 at 08:42:17:
Intelligently in the 1970's, designed with a TOTALLY SEPARATE G2 supply, the stock Paoli 60M used a 62 Ohm DCR 230 VAC G2 power trannie. The Dynamic Z of the supply PSUD 2 simulates to 511 Ohms Z, and it settles in 550 mS. (see top PSUD 2 screen shot).I have applied "modern" power supply technology for G2, and we can use off-the-shelf iron, (from Signal Transformer Co. and Edcor) to obtain a G2 supply that settles TEN TIMES faster, (about 60 mS. - much closer to John Swenson's 50 mS. threshold), and has a reduced Dynamic Z of 177 Ohms.
All this is passively designed and executed, with NO add-on active regulators (ugh, ugh) to leave their sonic thumbprint on G2. A bold new world of audio is here.
G2's treatment is "everything" in Pentode Finals, it requires a separate supply, and we are maximizing performance with the above design. This will be VERY VERY bold and authoritative sounding, yet ultra-detailed, and the 60M amps will be a whole LOT of FUN to hear. Enjoy them Bob.
Jeff Medwin
Edits: 08/07/12 08/07/12 08/07/12
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Follow Ups
- In Pentode, G2 is of prime importance - drlowmu 10:24:19 08/07/12 (92)
- G2 Parts List......Magnetics. - drlowmu 05:50:06 08/10/12 (3)
- MrBob: Regulation - gusser 11:52:07 08/10/12 (2)
- Sorry, I don't know much about boutique wire.. - gusser 12:28:47 08/10/12 (0)
- RE: MrBob: Regulation - drlowmu 12:13:42 08/10/12 (0)
- RE: In Pentode, G2 is of prime importance - Triode_Kingdom 13:14:21 08/08/12 (59)
- RE: In Pentode, G2 is of prime importance - drlowmu 07:29:19 08/09/12 (58)
- Elitist Nonsense - Triode_Kingdom 08:13:30 08/10/12 (1)
- Hardly elitist, just the truth - drlowmu 08:50:44 08/10/12 (0)
- RE: In Pentode, G2 is of prime importance - tube wrangler 15:35:44 08/09/12 (0)
- Question from the peanut gallery - Lew 14:31:18 08/09/12 (19)
- Answer from the peanut gallery - Ray Moth 17:09:23 08/11/12 (10)
- G2 , wide current changes ..... - drlowmu 09:18:18 08/15/12 (0)
- RE: Answer from the peanut gallery - tube wrangler 16:18:43 08/12/12 (5)
- RE: Answer from the peanut gallery - Ray Moth 17:02:33 08/12/12 (4)
- RE: Answer from the peanut gallery - drlowmu 11:14:05 08/14/12 (3)
- It was a goodpost. - gusser 11:35:47 08/14/12 (2)
- Partially good post. - drlowmu 14:17:19 08/14/12 (1)
- RE: Partially good post. - Ray Moth 03:52:31 08/22/12 (0)
- "CCS driving a resistor"... - Lew 13:41:21 08/12/12 (2)
- RE: "CCS driving a resistor"... - Ray Moth 16:49:01 08/12/12 (1)
- A belated thanks... - Lew 10:51:28 08/14/12 (0)
- RE: Question from the peanut gallery - Triode_Kingdom 08:15:41 08/10/12 (0)
- RE: Question from the peanut gallery - drlowmu 14:57:16 08/09/12 (6)
- RE: Question from the peanut gallery - Lew 20:14:56 08/09/12 (5)
- RE: Question from the peanut gallery - drlowmu 21:20:14 08/09/12 (4)
- Mel Schilling... - Lew 06:48:06 08/10/12 (3)
- RE: Mel Schilling... - drlowmu 07:07:17 08/10/12 (2)
- RE: Mel Schilling... - Lew 08:03:18 08/10/12 (1)
- RE: Mel Schilling... - drlowmu 08:44:58 08/10/12 (0)
- Let's see some numbers then... - gusser 11:09:48 08/09/12 (34)
- What numbers ? - drlowmu 13:17:51 08/09/12 (33)
- Just Absurd! - gusser 13:53:41 08/09/12 (32)
- Worse than Absurd! - Triode_Kingdom 10:59:52 08/11/12 (31)
- You're gettin too emotional, and unbalanced TK - drlowmu 12:09:13 08/11/12 (1)
- Personal Attacks Won't Fix Your Amplifiers - Triode_Kingdom 19:04:53 08/11/12 (0)
- What I don't get... - gusser 11:50:44 08/11/12 (28)
- RE: What I don't get... - tube wrangler 11:18:45 08/12/12 (4)
- 12v Computer Power Supply? - gusser 11:49:43 08/12/12 (2)
- RE: 12v Computer Power Supply? - tube wrangler 20:56:31 08/12/12 (1)
- RE: 12v Computer Power Supply? - gusser 10:11:32 08/13/12 (0)
- Just more cowboy logic! - gusser 11:35:58 08/12/12 (0)
- RE: What I don't get... - drlowmu 00:01:43 08/12/12 (22)
- RE: get on the plane... - deathtube 667 05:11:59 08/12/12 (21)
- Who selects the musical passages? - gusser 10:47:05 08/12/12 (20)
- RE: Who selects the musical passages? - tube wrangler 00:15:29 08/13/12 (0)
- RE: Who selects the musical passages? - deathtube 667 12:27:44 08/12/12 (18)
- I don't think you get it! - gusser 12:30:53 08/12/12 (17)
- RE: I don't think you get it! - tube wrangler 23:28:29 08/12/12 (15)
- RE: I don't think you get it! - gusser 10:28:56 08/13/12 (14)
- RE: I don't think you get it! - wrangler 11:59:54 08/13/12 (0)
- ALL you need to know..... - drlowmu 10:59:15 08/13/12 (12)
- RE: ALL you need to know..... - deathtube 667 06:48:42 08/14/12 (11)
- Let me getthis straight? - gusser 10:44:11 08/14/12 (10)
- RE: Let me get this straight? - deathtube 667 17:33:06 08/14/12 (1)
- RE: Let me get this straight? - gusser 17:51:25 08/14/12 (0)
- RE: Let me get this straight? - drlowmu 11:18:27 08/14/12 (7)
- RE: Let me get this straight? - gusser 11:31:18 08/14/12 (6)
- RE: Let me get this straight? - drlowmu 11:38:32 08/14/12 (5)
- Ahh, OK - gusser 11:43:34 08/14/12 (4)
- RE: Ahh, OK - tube wrangler 20:40:15 08/14/12 (3)
- RE: great post ... - deathtube 667 04:33:48 08/16/12 (2)
- Seroius Stereo... - gusser 11:53:36 08/16/12 (1)
- RE: Serious Stereo... - deathtube 667 13:34:49 08/16/12 (0)
- Junk Science - Triode_Kingdom 16:31:51 08/12/12 (0)
- RE: In Pentode, G2 is of prime importance - gusser 11:24:02 08/07/12 (27)
- RE: In Pentode, G2 is of prime importance - Tre' 12:09:29 08/08/12 (7)
- RE: In Pentode, G2 is of prime importance - rage 13:17:15 08/09/12 (6)
- flaw in the power supply - Tre' 17:30:05 08/10/12 (0)
- RE: In Pentode, G2 is of prime importance - drlowmu 13:24:22 08/09/12 (4)
- excellence, "near perfection" in the G2 power supply - drlowmu 10:06:56 08/11/12 (0)
- RE: In Pentode, G2 is of prime importance - rage 13:31:13 08/09/12 (2)
- Photos of the 1970's Paoli 60M amps - drlowmu 09:14:20 08/10/12 (1)
- RE: Photos of the 1970's Paoli 60M amps - alexthegreatm62@hotmail.com 21:14:33 09/04/12 (0)
- RE: In Pentode, G2 is of prime importance - drlowmu 11:51:53 08/07/12 (18)
- RE: In Pentode, G2 is of prime importance - gusser 12:58:23 08/07/12 (17)
- RE: In Pentode, G2 is of prime importance - drlowmu 13:56:04 08/07/12 (16)
- RE: In Pentode, G2 is of prime importance - gusser 15:30:58 08/07/12 (0)
- RE: In Pentode, G2 is of prime importance - Ray Moth 15:21:24 08/07/12 (14)
- In audio, LISTENING is of prime importance - drlowmu 21:30:41 08/07/12 (13)
- So is intelligent engineering (nt) - Triode_Kingdom 13:15:04 08/08/12 (5)
- Right, both are required - gusser 13:23:42 08/08/12 (4)
- RE: Right, both are required - drlowmu 13:33:23 08/08/12 (3)
- RE: Right, both are required - gusser 13:40:01 08/08/12 (2)
- So sorry, I erred about this........ - drlowmu 15:06:21 08/08/12 (1)
- RE: So sorry, I erred about this........ - gusser 15:24:20 08/08/12 (0)
- No Practical DIY Building expereince???? - gusser 10:27:06 08/08/12 (0)
- RE: In audio, LISTENING is of prime importance - TheBob 22:11:05 08/07/12 (5)
- RE: In audio, LISTENING is of prime importance - Triode_Kingdom 18:32:36 08/09/12 (1)
- RE: In audio, LISTENING is of prime importance - drlowmu 18:40:04 08/09/12 (0)
- Well said! - Ray Moth 04:20:25 08/08/12 (2)
- RE: Well said! - TheBob 12:48:33 08/11/12 (0)
- RE: Well said! - TheBob 10:37:56 08/11/12 (0)
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