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2A3 SET Amplifiers (Monoblocks) http://www.dcaudiodiy.com/phpBB3/viewtopic.php?f=7&t=1469 |
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Author: | pboser [ October 17th, 2019, 10:35 am ] |
Post subject: | Re: 2A3 SET Amplifiers (Monoblocks) |
Hi Dave, I hope you don't mind my inquiry - I'm not really a likely candidate to purchase, but more likely to copy/be inspired. What's the other octal tube next to the 6688? And do you have an under-the-hood photo to see how you mounted the motor-run caps? Thanks, and good luck with the sale - they look great! Pete |
Author: | David McGown [ October 17th, 2019, 11:01 am ] |
Post subject: | Re: 2A3 SET Amplifiers (Monoblocks) |
The octal tube is the gas regulator tube. Don't remember which one I used, but will check and update, including an under the hood view. When using a pentode for a gain stage (or driver), you can really nail down performance using a screen regulator. It fixes the characteristics of the tube, which can move around with a screen supply off of B+ through a voltage divider to ground. David |
Author: | pboser [ October 17th, 2019, 11:03 am ] |
Post subject: | Re: 2A3 SET Amplifiers (Monoblocks) |
That's a helpful tip - thanks! |
Author: | David McGown [ April 9th, 2023, 7:59 pm ] |
Post subject: | Re: 2A3 SET Amplifiers (Monoblocks) |
Sold |
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