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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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In Reply to: PP amp design posted by akltam on September 12, 2003 at 07:37:02:
Alan,What you propose will work just fine, but....
As I mentioned in the reply to Daniel's post, I have found that step-up in the interstage only works sonically with a very low Rp driver tube. The real plate impedance of a 6C45 seems to be about 2.4-3K, which makes the driving impedance seen by the grid of each output tube something like 12K. I would prefer to see something less than 3000 ohms. I used a driver stage like you propose for a while in a P-P 300B amp and felt that the sound was just not pleasing enough. I changed it to the 3 stage design that I posted for a very large improvement.
Kevin Carter
K&K Audio
www.kandkaudio.com
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Follow Ups
- Re: PP amp design - KevinC 14:39:09 09/12/03 (6)
- Re: PP amp design - akltam 17:51:09 09/12/03 (5)
- Thank you! - akltam 01:38:15 09/14/03 (0)
- Re: PP amp design - KevinC 10:56:24 09/13/03 (2)
- Re: PP amp design - Tre' 22:03:46 09/18/03 (1)
- Re: PP amp design - KevinC 04:42:37 09/19/03 (0)
- Re: PP amp design - Horn-a-copia 10:32:54 09/13/03 (0)
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