In Reply to: RE: Actually... posted by SteveBrown on July 3, 2012 at 14:04:23:
Thanks anyway.It would have been a good test.
The output impedance of that 6sl7 stage is not low enough to fully drive the Miller capacitance of the 2a3.
The result is a small loss of high frequencies and a phase shift that extends well into the audio band.
If you had a CCS loading the 6sl7 plate you could use the mu output and have a drive impedance that would be low enough to fully drive the Miller capacitance of the 2a3. (but you still wouldn't have the necessary drive current so maybe the whole point is moot)
Oh well, maybe next time.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 07/03/12
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Follow Ups
- RE: Actually... - Tre' 14:27:08 07/03/12 (14)
- RE: Actually... - Donald North 00:30:20 07/04/12 (10)
- RE: Actually... - Tre' 07:30:20 07/04/12 (9)
- RE: Actually... - RC Daniel 00:28:30 07/05/12 (5)
- RE: Actually... - Tre' 08:35:21 07/05/12 (0)
- Any talk of Miller is stupid, archic, and off-base..... - drlowmu 07:13:25 07/05/12 (3)
- RE: Any talk of Miller is stupid, archic, and off-base..... - Lew 14:10:25 07/05/12 (2)
- RE: Any talk of Miller is stupid, archic, and off-base..... - drlowmu 23:51:26 07/05/12 (1)
- RE: Any talk of Miller is stupid, archic, and off-base..... - Lew 07:43:05 07/06/12 (0)
- RE: Actually... - Stephen R 10:03:16 07/04/12 (2)
- RE: Actually... - Tre' 11:00:57 07/04/12 (1)
- RE: Actually... - Stephen R 15:14:24 07/04/12 (0)
- RE: Actually... - RC Daniel 20:15:47 07/03/12 (0)
- RE: Actually... - Chris O 18:47:08 07/03/12 (1)
- RE: Actually... - danlaudionut 23:10:50 07/04/12 (0)