|
Tubes Asylum Questions about tubes and gear that glows. FAQ |
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
Scott 340a and 399 receivers
Posted by onemug on May 5, 2017 at 17:38:10:
I have not needed to replace output tubes on my 340a or 399...when it comes time, is the 340 auto bias? Does one need to buy a matched pair or quad for it? I see a "dc balance" control though.
The 399 looks like there is a bias adjustment. Any advice on what/how one needs to do when replacing output tubes on either receiver would be appreciated?