|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
|
|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
I was going to say in the title "Tube used as active load for Foreplay" but that really sounds bad. Anyway, have you tried using a tube configured as a constant current source for the foreplay? Looks like it could be done to the first stage replacing the 120K resistor. I think the 12AX7 would be a good tube as it has high plate resistance. By my rough and probably inaccurate calculations, the effective AC load would be around 5.5Meg. I'm not too sure a tube would be a good choice as a constant current source at the cathode follower; not enough voltage to work with.Just curious,
Tom S.
This post is made possible by the generous support of people like you and our sponsors:
Topic - To Doc B.: Tube used as active load for your preamp. - Tom S. 05:27:40 07/12/99 (23)
- oh brother, Doc gets preachy again. - Doc B. 09:01:15 07/12/99 (23)
- SS rectification and ST-70 - Tom Kuhn 21:58:50 07/12/99 (2)
- Re: SS rectification and ST-70 - john curl 15:25:23 07/15/99 (0)
- Hehehe....... - Tom S. 10:14:26 07/12/99 (19)
- Re: Hehehe....... - Jack G 11:01:22 07/12/99 (8)
- Re: Hehehe....... - Tom S. 11:45:15 07/12/99 (7)
- Re: Hehehe....... - Jack G 04:57:18 07/13/99 (6)
- Re: Hehehe....... - Tom S. 05:44:09 07/13/99 (5)
- Re: Hehehe....... - Doc B. 08:45:00 07/13/99 (4)
- Re: Hehehe....... - Jack g 08:56:57 07/13/99 (2)
- Re: Hehehe....... - Doc B. 14:00:46 07/13/99 (1)
- good point.(nt) - Jack G 04:54:05 07/14/99 (0)
- Re: Hehehe....... - Tom S. 08:56:11 07/13/99 (0)
- Re: Hehehe....... - Doc B. 10:51:25 07/12/99 (9)
- I can prove it!! - Quest 11:39:55 07/12/99 (8)
- MUR Series Rects.... - Thorsten 02:46:29 07/14/99 (4)
- Re: MUR Series Rects.... - Brad 02:17:42 07/16/99 (1)
- thanks Brad :-) (nt) - Quest 08:33:51 07/16/99 (0)
- my dear friend Thorsten.. - Quest 11:42:30 07/15/99 (0)
- Thanks again Thorsten :-> (nt) - Quest 11:35:11 07/15/99 (0)
- Re: I can prove it!! - Doc B. 14:12:05 07/12/99 (2)
- Re: UF4007 - MIKE 17:40:05 07/12/99 (1)
- Re: UF4007 - Doc B. 20:39:47 07/12/99 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
