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In Reply to: I challenge you to publish your measurents of that rolloff! posted by serus on September 29, 2004 at 12:03:12:
I built that one, a 12AX7, a 12AZ7, a 12AY7, a 12AU7, a 12AV7, a 5965 and found all them to turn square waves into triangles with a .25 uF coupler to a 100k grid load( with no grid ) by 10k cps. this is with 25, 30 and 40k splitter section loads. It was a bit better with 25k, but not much. I left that design on the shed floor and moved on to 5687 and 12A4 diff amps...i did not listen to them, but found the stock 6AN8 to sound OK and it turned square waves into triangles by 7k...Hell, some folks like 45's in SE, no accounting for taste.
live long and prosper,
Douglas
!
Beware the man who behaves deceitfully towards others, for there is nothing else to save you from his deceiving you
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Follow Ups
- Re: I challenge you to publish your measurents of that rolloff! - Sector-7G 17:01:10 09/29/04 (12)
- Now we are talking... - serus 19:30:31 09/29/04 (11)
- Re: Now we are talking... - Sector-7G 19:59:37 09/29/04 (10)
- Diff amp balanced? - serus 22:39:16 09/29/04 (3)
- Re: Diff amp balanced? - Sector-7G 06:12:44 09/30/04 (2)
- Re: Diff amp balanced? - serus 08:14:31 09/30/04 (1)
- Re: Diff amp balanced? - Sector-7G 19:38:48 10/01/04 (0)
- My measurements - serus 21:47:59 09/29/04 (5)
- Re: My measurements - Sector-7G 06:37:54 09/30/04 (4)
- Re: freq response - serus 07:45:18 09/30/04 (3)
- Re: freq response - Sector-7G 08:17:47 09/30/04 (2)
- Re: freq response - serus 09:01:11 09/30/04 (1)
- so get a bigger hammer... - Sector-7G 09:15:08 10/02/04 (0)