I know of the clicks when raising volume, it’s not that.
Literally just plugged the amp in, and there is quite bad background noise.
I’d put in BHK recommended Tungstram 7DJ8 6v tubes, set voltage jumper (and current as suggested) and sat down to listen
Between volume level 21and 24 there is a very noticeable ‘whistling” tone, which vanishes when the volume relay clicks in at 25.
Toggling between 24 and 25 it’s extremely noticeable.
Tube burn in? Amp burn in?
Will it vanish with more time on it, and is it an indicator of an inherent issue?
Should it sound dead quiet switched on the first time?
Any other preamp I’ve had in my system and been silent.
Scratching my head on this one, frustrating as I’ve waited many weeks for my Amp.