This issue of "burning-in" a rectifier tube is NONSENSE! It either works right away - or it doesn't! I speak from experience as a longtime tube user! As long as a rectifier tube is operated within its current/voltage rating, all is good! Different rectifiers drop the B+ voltage by different amounts. This affects overall circuit parameters. A rectifier tube has no "sound" per se! Expecting it to sound "better" after hundreds of hours is lunacy!
Bendix 6106 burn-in behavior
I've read that the Bendix 6106 can be a very good rectifier tube, but that it takes a couple hundred hours to burn in. And that during that time it can misbehave.
I've been burning in an NOS JAN Bendix 6106 for about 50 hours or so. Today I notice a slight hum on my phono channel, and the volume on the left phono channel is way down. However, on other sources, both channels are hum-free and have appropriate volume matching.
Do I have a bum tube? Or is this a normal behavior during 6106 burn-in? Preamp is Supratek Cortese with LCR phono stage. The seller has said he's willing to swap tubes to ensure my satisfaction...
Thanks, in advance, to anyone who has some experience to share.
Markus
I've been burning in an NOS JAN Bendix 6106 for about 50 hours or so. Today I notice a slight hum on my phono channel, and the volume on the left phono channel is way down. However, on other sources, both channels are hum-free and have appropriate volume matching.
Do I have a bum tube? Or is this a normal behavior during 6106 burn-in? Preamp is Supratek Cortese with LCR phono stage. The seller has said he's willing to swap tubes to ensure my satisfaction...
Thanks, in advance, to anyone who has some experience to share.
Markus