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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: pre-amp output transformer posted by danlaudionut on August 30, 2006 at 14:02:37:
My pre-amp was built like this(no picture)
--input signal was attenuated by shunt volume then the sinal go to the grid of 6sn7
--the B+ is 405V and after pass the plate resister(47K)the voltage was drop to 231 V
--biasing was made by rechargable battery 9 V at the cathode
--the C coupling is russia teflon value 0.2uf bicap with oil siemens 0.1uF
I have tried changing many coupling caps and finally want to change to transformer coupling(which i have to drop the B+)but do not know much about the transformer to use with this 6sn7 tube.
I am now using this pre-amp with my Krell KSA 100 mkII.
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Follow Ups
- Re: pre-amp output transformer - pao 23:25:21 08/30/06 (12)
- Re: pre-amp output transformer - danlaudionut 23:45:47 08/30/06 (11)
- Re: pre-amp output transformer - pao 01:36:51 08/31/06 (10)
- Re: pre-amp output transformer - Dave Cigna 15:00:19 08/31/06 (3)
- Re: pre-amp output transformer - pao 18:00:08 08/31/06 (2)
- Re: pre-amp output transformer - danlaudionut 20:38:46 08/31/06 (1)
- Re: pre-amp output transformer - pao 23:38:50 08/31/06 (0)
- Re: pre-amp output transformer - danlaudionut 06:08:39 08/31/06 (5)
- Re: pre-amp output transformer - pao 08:36:19 08/31/06 (4)
- Re: pre-amp output transformer - danlaudionut 08:33:25 09/01/06 (3)
- Re: pre-amp output transformer - pao 18:00:11 09/01/06 (2)
- Re: pre-amp output transformer (Long) - danlaudionut 21:58:10 09/01/06 (1)
- Re: pre-amp output transformer (Long) - pao 22:54:59 09/01/06 (0)
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