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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: But here's a commercial preamp kit that uses your favorite tube posted by Frihed89 on October 29, 2014 at 01:29:01:
Any comments? Well, I don't have the circuit to hand. Anything with the 4P1L will be a good idea. The best way to use it is in filament bias and with a really good interstage or OPT, so that takes my design out of the area of the more simple variations. More complex but worth it sound wise. Otherwise you get most of the quality with an active load and a good coupling cap, which is a typical implementation. As long as you eliminate the cathode bypass cap with some kind of solution in the cathode circuit and provided you have a really clean filament supply, one for each tube. Mine is very elaborate. Schematic details below in thread.
But the point of 4P1L into PSE 4P1L is that you have a DHT 2-stage solution due to the higher gain of the 4P1L so you don't have to resort to inferior input tubes to make up the gain for a low mu output like the 45.
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Follow Ups
- RE: But here's a commercial preamp kit that uses your favorite tube - andy evans 03:55:14 10/29/14 (2)
- High gain appears to be a problem with this preamp - Frihed89 04:09:49 10/29/14 (1)
- It's not a high gain tube - andy evans 07:57:00 10/29/14 (0)
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