In Reply to: RE: Modeling the Bugle 45 PSU, any comments? posted by danlaudionut on June 29, 2009 at 10:16:36:
Dan,
I am not at my home computer, but I think 255 Ohms DCR is what the recommended power transformer measures for DCR of its high voltage winding.
I will know when I check my notes on the DCR later today or probably tomorrow. I had a friend in Venice CA measure it for me and I do recall it was astronomically high in DCR.
In any case, its a SICK part to use in any DHT amp, because it suffers from too high a DCR. It instantly guarantees a non dynamic amplifier.
No wonder people objected to my posts on DCR when I said "20 Ohms or less" is needed for the high voltage secondary for "real quality"....255 Ohms is TWELVE TIMES too high from my listening evaluations over the years.
Jeff Medwin
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Follow Ups
- RE: Modeling the Bugle 45 PSU, any comments? - drlowmu 06/29/0913:03:18 06/29/09 (42)
- RE: Modeling the Bugle 45 PSU, any comments? - mqracing 16:46:46 06/29/09 (40)
- RE: Modeling the Bugle 45 PSU, any comments? - drlowmu 06:14:19 06/30/09 (2)
- RE: Modeling the Bugle 45 PSU, any comments? - Ray Moth 10:59:13 07/1/09 (1)
- RE: Modeling the Bugle 45 PSU, any comments? - drlowmu 14:14:21 07/2/09 (0)
- Power transformer DCR sets the dynamic impedance. - JLH 04:23:03 06/30/09 (34)
- RE: Power transformer DCR sets the dynamic impedance. - Tre' 08:46:19 06/30/09 (33)
- Dynamic impedance explained - JLH 04:36:38 07/1/09 (24)
- RE: Dynamic impedance explained - zobsky 11:14:24 07/2/09 (1)
- R input filters - drlowmu 14:32:54 07/2/09 (0)
- RE: Dynamic impedance explained - Michael Koster 08:54:13 07/2/09 (11)
- It’s not about averages, it about instantaneous. (nt) - JLH 12:21:50 07/2/09 (7)
- RE: It’s not about averages, it about instantaneous. (nt) - Michael Koster 12:50:01 07/2/09 (6)
- The PSUD step function - tweakydee 20:02:17 07/2/09 (3)
- RE: The PSUD step function - Michael Koster 08:11:03 07/3/09 (2)
- great, thanks! nt - tweakydee 07:10:41 07/4/09 (0)
- RE: The PSUD step function - PakProtector 09:04:50 07/3/09 (0)
- RE: It’s not about averages, it about instantaneous. (nt) - PakProtector 13:27:16 07/2/09 (1)
- RE: It’s not about averages, it about instantaneous. (nt) - tube wrangler 20:27:08 07/2/09 (0)
- Great points - Tre' 10:49:32 07/2/09 (2)
- RE: Great points - tube wrangler 20:45:50 07/2/09 (1)
- revisionist history - PakProtector 04:42:50 07/3/09 (0)
- RE: Dynamic impedance explained - Testing123 09:31:18 07/1/09 (5)
- RE: Dynamic impedance explained - rdf 12:21:23 07/2/09 (0)
- Who IS this "Testing 123" and WHAT are his (or her) qualifications?? - drlowmu 06:24:06 07/2/09 (3)
- RE: Who IS this "Testing 123" and WHAT are his (or her) qualifications?? - Testing123 10:22:08 07/2/09 (0)
- Completely irrelevant. - Ray Moth 08:51:49 07/2/09 (0)
- Ability to reason carefully, and write clearly - PakProtector 07:04:40 07/2/09 (0)
- RE: Dynamic impedance explained - Tre' 09:23:45 07/1/09 (1)
- RE: Dynamic impedance explained - PakProtector 05:30:02 07/2/09 (0)
- A masterful explanation... - coronadope 08:02:07 07/1/09 (1)
- Brilliant post... - Nickel Core 08:33:04 07/1/09 (0)
- RE: Power transformer DCR sets the dynamic impedance. - Testing123 09:10:51 06/30/09 (7)
- RE: Power transformer DCR sets the dynamic impedance. - Tre' 10:38:27 06/30/09 (6)
- Piling On - drlowmu 06:25:51 07/1/09 (5)
- When are you going to stop doing this? - Ray Moth 10:36:15 07/1/09 (4)
- RE: When are you going to stop doing this? - PakProtector 11:00:25 07/1/09 (3)
- Then we shall have to agree to differ - Ray Moth 11:11:34 07/1/09 (2)
- RE: Then we shall have to agree to differ - drlowmu 06:31:05 07/2/09 (1)
- RE: Then we shall have to agree to differ - Ray Moth 15:56:32 07/3/09 (0)
- Thank you Mike! - DanK tubes 19:35:59 06/29/09 (0)
- Thanks for posting that - Ray Moth 19:32:44 06/29/09 (0)
- RE: Modeling the Bugle 45 PSU, any comments? - danlaudionut 15:54:22 06/29/09 (0)