tiofelon

Responses from tiofelon

Is the red glow normal for 845 tubes?
Thanks again Brf. I just run into an article in VTV (vacuum tube valley) where it says "graphite es heat-resistant (in fact, it can operate with a dull red glow for a long time without failing)" in power tubes like the 811 o 845. However a new set... 
Is the red glow normal for 845 tubes?
Thank you Brf and Dopogue for your input! According to the manufacturer the dissipation rating for the Sino 845 is 70W. The amp is a self-bias so there is no need for adjustment. The tubes in question are Sino 845 (not B, C or W). I got the amp se...