What value do you use? The Max resistance stated in the tube datasheet? Say, the input of an amp, I've seen commercial buffer stages use 470k grid res. Going lower can help combat
Hum or gnd loops but shunts more of the signal. I know, I know "try it yourself and find out"
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Topic - grid resistors first stage of amp - hennfarm 19:38:07 06/23/12 (23)
- RE: grid resistors first stage of amp - Jim McShane 13:16:33 06/24/12 (16)
- RE: grid resistors first stage of amp - Eli Duttman 16:46:55 06/24/12 (15)
- RE: grid resistors first stage of amp - Naz 06:28:51 06/25/12 (3)
- RE: grid resistors first stage of amp - Eli Duttman 18:16:29 06/25/12 (2)
- RE: grid resistors first stage of amp - Tre' 17:17:39 06/26/12 (0)
- RE: grid resistors first stage of amp - Naz 21:36:24 06/25/12 (0)
- RE: grid resistors first stage of amp - Tre' 17:28:15 06/24/12 (10)
- RE: grid resistors first stage of amp - Jim McShane 13:14:33 06/25/12 (9)
- RE: grid resistors first stage of amp - Tre' 14:34:57 06/25/12 (8)
- RE: grid resistors first stage of amp - Jim McShane 15:41:48 06/25/12 (1)
- You may be right - Tre' 15:56:33 06/25/12 (0)
- It dawns on me that the grid resistor does lower the source impedance but... - Tre' 14:55:16 06/25/12 (5)
- A triode driver example - Tre' 15:30:26 06/25/12 (4)
- RE: A triode driver example - Triode_Kingdom 16:26:14 06/26/12 (3)
- RE: A triode driver example - Tre' 20:01:05 06/26/12 (2)
- RE: A triode driver example - hennfarm 21:14:01 06/27/12 (1)
- RE: A triode driver example - Tre' 09:13:50 06/28/12 (0)
- RE: grid resistors first stage of amp - Triode_Kingdom 23:14:41 06/23/12 (0)
- RE: grid resistors first stage of amp - Chris O 20:07:09 06/23/12 (4)
- RE: grid resistors first stage of amp - Naz 06:33:42 06/25/12 (2)
- RE: grid resistors first stage of amp - Chris O 08:29:28 06/25/12 (1)
- RE: grid resistors first stage of amp - Tre' 11:05:39 06/25/12 (0)
- RE: grid resistors first stage of amp - Tre' 22:00:40 06/23/12 (0)