|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
For Sale Ads |
Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.
Original Message
RE: Fixed bias problem, and no, it is not the tubes.
Posted by Jim McShane on January 11, 2017 at 19:55:11:
What value are the grid resistors? If they are too high that can cause problems. For the KT-120 with fixed bias the max is 51K - so if you have higher than that it could be the problem.