Pursuant to http://www.audioasylum.com/forums/magnequest/messages/7472.html, Mike and I talked today about another couple of conceptual variants on the differential two stage amplifier using a pentode input stage that is connected for partial triode ("Ultralinear") operation. See this and the following post for schematics. The design should be amenable to use of several different pentodes. Mike will comment further.
Kevin Carter
K&K Audio
www.kandkaudio.com
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Topic - PP EL34 amplifier with UL driver - KevinC 16:33:18 06/12/08 (18)
- CCS: single or cascode - Uncle Clyde 11:30:32 06/16/08 (1)
- Yes ... much better. - gluca 11:44:15 06/16/08 (0)
- Great! - gluca 05:42:37 06/14/08 (8)
- revised EL34 RC coupled with CT UL plate choke - mqracing 22:44:01 06/18/08 (3)
- Hi Mike, I'd like to try that as well. So if you can... - Bas Horneman 14:30:23 06/19/08 (0)
- COOL! - Uncle Clyde 11:49:02 06/19/08 (0)
- BAAAM! - gluca 00:59:15 06/19/08 (0)
- Ruminations - gluca 13:14:35 06/18/08 (0)
- gian, jim, and nc..... - mqracing 21:36:05 06/16/08 (0)
- cool - Jim Dowdy 15:29:27 06/14/08 (1)
- Me Too - nc 17:48:18 06/14/08 (0)
- RE: PP EL34 amplifier with UL driver - mqracing 01:06:34 06/13/08 (3)
- RE: PP EL34 amplifier with UL driver - pistoljoe 10:49:00 06/14/08 (2)
- RE: PP EL34 amplifier with UL driver - markmac 20:18:45 06/17/08 (1)
- Forgot Something... - markmac 20:34:32 06/17/08 (0)
- PP EL34 amplifier with UL driver, Part 2 - KevinC 16:36:29 06/12/08 (2)
- RE: PP EL34 amplifier with UL driver, Part 2 - triode3 08:07:33 08/10/08 (0)
- and if pentodes make you want to go poo poo..... - mqracing 09:26:08 06/13/08 (0)