In Reply to: RE: What tubes to use with this Interstage Transformers? posted by megasat16 on September 4, 2016 at 12:32:40:
"Fc is shifted due to the R being smaller."
Correct but with a low enough Rp (and it not being multiplied by a step up IT) Fc is high enough so it no longer matters.
"Essentially, your choice is not to use the 1:4IT which I understand and respect that.
But my choice is to use the IT I have and to work around it and find a suitable tubes for it. I think you have mentioned that it would be very difficult if not next to impossible? "
Yes, and I will say it again.
If you had a driver stage with (let's say) a 500 ohm output impedance, that 500 ohms would look like 8k ohms to the output tube's grid and Miller C. As long as the output does not have too much Miller C then the 8k ohms would drive it just fine. That is to say the Fc would be high enough as to not matter.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
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Follow Ups Full ThreadTopic - What tubes to use with this Interstage Transformers? - megasat16 18:06:41 08/23/16 (136)
- RE: What tubes to use with this Interstage Transformers? - shane. 00:09:29 08/31/16 (30)
- RE: What tubes to use with this Interstage Transformers? - megasat16 09:08:18 08/31/16 (29)
- RE: What tubes to use with this Interstage Transformers? - shane. 23:44:45 08/31/16 (28)
- RE: What tubes to use with this Interstage Transformers? - Tre' 08:59:54 09/01/16 (0)
- RE: What tubes to use with this Interstage Transformers? - megasat16 00:16:17 09/01/16 (26)
- RE: What tubes to use with this Interstage Transformers? - Tre' 09:08:36 09/01/16 (15)
- RE: What tubes to use with this Interstage Transformers? - megasat16 20:58:28 09/01/16 (14)
- RE: What tubes to use with this Interstage Transformers? - Tre' 19:25:28 09/02/16 (13)
- RE: What tubes to use with this Interstage Transformers? - megasat16 23:30:32 09/02/16 (12)
- RE: What tubes to use with this Interstage Transformers? - Tre' 14:33:06 09/03/16 (11)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:06:47 09/03/16 (10)
- RE: What tubes to use with this Interstage Transformers? - Tre' 08:23:25 09/04/16 (7)
- RE: What tubes to use with this Interstage Transformers? - megasat16 11:01:07 09/04/16 (6)
- RE: What tubes to use with this Interstage Transformers? - Tre' 11:35:43 09/04/16 (5)
- RE: What tubes to use with this Interstage Transformers? - megasat16 11:55:43 09/04/16 (4)
- RE: What tubes to use with this Interstage Transformers? - megasat16 12:32:40 09/04/16 (2)
- RE: What tubes to use with this Interstage Transformers? - Tre' 12:38:39 09/04/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 12:59:49 09/04/16 (0)
- RE: What tubes to use with this Interstage Transformers? - Tre' 12:32:10 09/04/16 (0)
- RE: What tubes to use with this Interstage Transformers? - Lenin 01:20:27 09/04/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 11:29:04 09/04/16 (0)
- RE: What tubes to use with this Interstage Transformers? - shane. 00:27:44 09/01/16 (9)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:00:42 09/01/16 (8)
- RE: What tubes to use with this Interstage Transformers? - shane. 21:30:39 09/01/16 (7)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:50:08 09/01/16 (6)
- RE: What tubes to use with this Interstage Transformers? - shane. 22:06:35 09/01/16 (5)
- RE: What tubes to use with this Interstage Transformers? - megasat16 22:15:53 09/01/16 (4)
- RE: What tubes to use with this Interstage Transformers? - shane. 22:17:57 09/01/16 (3)
- RE: What tubes to use with this Interstage Transformers? - megasat16 22:20:21 09/01/16 (2)
- RE: What tubes to use with this Interstage Transformers? - shane. 22:30:06 09/01/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 22:39:24 09/01/16 (0)
- RE: What tubes to use with this Interstage Transformers? - hifipaul 12:04:49 08/28/16 (3)
- RE: What tubes to use with this Interstage Transformers? - megasat16 18:11:51 08/28/16 (2)
- RE: What tubes to use with this Interstage Transformers? - hifipaul 18:48:16 08/28/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 19:34:10 08/28/16 (0)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 06:11:21 08/27/16 (92)
- RE: What tubes to use with this Interstage Transformers? - megasat16 09:54:31 08/27/16 (91)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 11:24:22 08/27/16 (90)
- RE: What tubes to use with this Interstage Transformers? - megasat16 19:46:41 08/27/16 (89)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 07:19:46 08/28/16 (88)
- RE: What tubes to use with this Interstage Transformers? - megasat16 19:45:41 08/28/16 (75)
- RE: What tubes to use with this Interstage Transformers? - euro21 05:28:15 08/29/16 (0)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 21:45:55 08/28/16 (73)
- RE: What tubes to use with this Interstage Transformers? - megasat16 22:08:29 08/28/16 (72)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 05:51:34 08/29/16 (71)
- RE: What tubes to use with this Interstage Transformers? - megasat16 15:25:35 08/29/16 (70)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 19:39:03 08/29/16 (69)
- RE: What tubes to use with this Interstage Transformers? - megasat16 20:14:15 08/29/16 (68)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 20:27:01 08/29/16 (67)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:01:54 08/29/16 (66)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 05:54:59 08/30/16 (65)
- RE: What tubes to use with this Interstage Transformers? - megasat16 08:16:23 08/30/16 (64)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 08:39:02 08/30/16 (63)
- RE: What tubes to use with this Interstage Transformers? - megasat16 08:47:38 08/30/16 (62)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 09:38:22 08/30/16 (61)
- RE: What tubes to use with this Interstage Transformers? - megasat16 09:48:52 08/30/16 (60)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 14:12:12 08/30/16 (59)
- RE: What tubes to use with this Interstage Transformers? - megasat16 16:47:51 08/30/16 (58)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 18:38:56 08/30/16 (57)
- RE: What tubes to use with this Interstage Transformers? - megasat16 09:25:05 08/31/16 (56)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 12:28:26 08/31/16 (55)
- RE: What tubes to use with this Interstage Transformers? - megasat16 13:44:23 08/31/16 (54)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 14:05:13 08/31/16 (53)
- RE: What tubes to use with this Interstage Transformers? - megasat16 23:19:27 08/31/16 (52)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 05:14:07 09/01/16 (51)
- RE: What tubes to use with this Interstage Transformers? - megasat16 07:02:02 09/01/16 (50)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 17:43:44 09/04/16 (49)
- RE: What tubes to use with this Interstage Transformers? - megasat16 19:08:04 09/04/16 (18)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 20:06:14 09/04/16 (17)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:15:04 09/04/16 (16)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 08:18:53 09/05/16 (0)
- RE: What tubes to use with this Interstage Transformers? - Tre' 08:09:34 09/05/16 (14)
- RE: What tubes to use with this Interstage Transformers? - megasat16 12:27:44 09/05/16 (13)
- RE: What tubes to use with this Interstage Transformers? - Tre' 13:43:57 09/05/16 (12)
- RE: What tubes to use with this Interstage Transformers? - megasat16 17:08:51 09/05/16 (11)
- RE: What tubes to use with this Interstage Transformers? - Tre' 17:32:35 09/05/16 (10)
- RE: What tubes to use with this Interstage Transformers? - megasat16 18:03:13 09/05/16 (0)
- Screen shots - Tre' 17:57:11 09/05/16 (8)
- RE: Screen shots - megasat16 18:06:40 09/05/16 (7)
- RE: Screen shots - Tre' 18:10:01 09/05/16 (6)
- RE: Screen shots - megasat16 18:20:56 09/05/16 (5)
- RE: Screen shots - Tre' 18:49:25 09/05/16 (4)
- RE: Screen shots - megasat16 19:09:37 09/05/16 (2)
- RE: Screen shots - Tre' 19:32:25 09/05/16 (1)
- RE: Screen shots - megasat16 21:14:09 09/05/16 (0)
- RE: Screen shots - megasat16 18:56:14 09/05/16 (0)
- RE: What tubes to use with this Interstage Transformers? - megasat16 18:50:38 09/04/16 (0)
- RE: What tubes to use with this Interstage Transformers? - megasat16 18:45:10 09/04/16 (28)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 19:54:36 09/04/16 (27)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:22:58 09/04/16 (26)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 08:29:39 09/05/16 (23)
- RE: What tubes to use with this Interstage Transformers? - megasat16 12:22:26 09/05/16 (22)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 13:59:42 09/05/16 (21)
- RE: What tubes to use with this Interstage Transformers? - megasat16 17:30:21 09/05/16 (20)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 19:08:30 09/05/16 (19)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:25:34 09/05/16 (18)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 07:19:06 09/06/16 (17)
- RE: What tubes to use with this Interstage Transformers? - megasat16 11:40:51 09/06/16 (16)
- RE: What tubes to use with this Interstage Transformers? - cpotl 05:35:07 09/08/16 (15)
- RE: What tubes to use with this Interstage Transformers? - megasat16 08:39:30 09/08/16 (14)
- RE: What tubes to use with this Interstage Transformers? - cpotl 09:10:27 09/08/16 (13)
- RE: What tubes to use with this Interstage Transformers? - megasat16 09:23:34 09/08/16 (12)
- RE: What tubes to use with this Interstage Transformers? - cpotl 13:50:46 09/08/16 (7)
- RE: What tubes to use with this Interstage Transformers? - megasat16 14:38:28 09/08/16 (6)
- RE: What tubes to use with this Interstage Transformers? - cpotl 15:01:00 09/08/16 (5)
- RE: What tubes to use with this Interstage Transformers? - megasat16 15:05:55 09/08/16 (4)
- RE: What tubes to use with this Interstage Transformers? - cpotl 15:33:49 09/08/16 (3)
- RE: What tubes to use with this Interstage Transformers? - megasat16 15:37:29 09/08/16 (2)
- RE: What tubes to use with this Interstage Transformers? - cpotl 15:55:04 09/08/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 16:11:01 09/08/16 (0)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 13:49:49 09/08/16 (3)
- RE: What tubes to use with this Interstage Transformers? - megasat16 14:30:21 09/08/16 (2)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 05:55:53 09/09/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 08:37:38 09/09/16 (0)
- RE: What tubes to use with this Interstage Transformers? - Lenin 08:28:58 09/05/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 12:36:36 09/05/16 (0)
- RE: What tubes to use with this Interstage Transformers? - Lenin 09:36:28 08/28/16 (11)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 10:09:17 08/28/16 (10)
- RE: What tubes to use with this Interstage Transformers? - Lenin 10:28:15 08/28/16 (9)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 12:19:51 08/28/16 (8)
- RE: What tubes to use with this Interstage Transformers? - Lenin 12:52:20 08/28/16 (7)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 14:51:43 08/28/16 (6)
- RE: What tubes to use with this Interstage Transformers? - Lenin 09:03:20 08/29/16 (5)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 10:00:38 08/29/16 (4)
- RE: What tubes to use with this Interstage Transformers? - Lenin 12:54:57 08/29/16 (3)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 13:48:33 08/29/16 (2)
- RE: What tubes to use with this Interstage Transformers? - Lenin 13:53:32 08/29/16 (1)
- RE: What tubes to use with this Interstage Transformers? - dave slagle 16:44:03 08/29/16 (0)
- You want a low anode impedence..? - andy evans 15:27:02 08/24/16 (1)
- RE: You want a low anode impedence..? - megasat16 22:03:23 08/24/16 (0)
- RE: What tubes to use with this Interstage Transformers? - Tre' 21:08:27 08/23/16 (5)
- RE: What tubes to use with this Interstage Transformers? - megasat16 21:28:20 08/23/16 (4)
- RE: What tubes to use with this Interstage Transformers? - Tre' 18:11:06 08/24/16 (3)
- RE: What tubes to use with this Interstage Transformers? - megasat16 22:00:20 08/24/16 (2)
- RE: What tubes to use with this Interstage Transformers? - Tre' 08:04:56 08/25/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 10:57:21 08/25/16 (0)
Follow Ups
- RE: What tubes to use with this Interstage Transformers? - Tre' 12:38:39 09/04/16 (1)
- RE: What tubes to use with this Interstage Transformers? - megasat16 12:59:49 09/04/16 (0)