|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: Re: Problem when large volume posted by sorenj07 on April 11, 2007 at 19:38:13:
About the LTP, try using an LM334 with a current set resistor of 15 or so. This should net you around 4-5mA to be shared between the tubes. This is too much current for a 12AX7 so I suggest a 12AY7. It has 60% of the gain and is a LOT more robust. What is the bias point for your output tubes? Also, you're dropping A LOT of voltage with those 270K plate loads on the 12AX7, try reducing them to around 82K. I don't know the current draw of your 12AX7's, but even if each is only drawing 1mA, you're still dropping 270V, which YOU DON'T HAVE. Fix this!
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Problem when large volume - sorenj07 19:42:20 04/11/07 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
