I can't speak for BAT's phono stage, but many amps and preamps which have need for high quality - low noise tubes and ordinary tubes in the same circuit. All you have to do is ID which are which. I do this in an ARC Pre amp and two Sonic Frontiers amps - saves a lot of money.
Anybody mix and match tubes?
I'm looking to re-tube my BAT VK-P5, which requires (8) 6DJ8/6922/7308 variety tubes. In looking at sale ads here on Agon and on Ebay, most folks sell matched pairs or quads. I'm curious as to if anyone has bought different matched quads and had success. I'm not talking matching 4 Sovtek 6922's with 4 Mullards 6DJ8's. I mean like 4 Amperex white label 7308 PQ's with 2 matched pairs of Amperex white label 7308 (non-PQ's). I would stay in the same family, but it's not easy finding 8 matching tubes for sale. Is this crazy or common place? I don't know as I'm rather new to tube rolling. It appears to be much cheaper buying here or at Ebay than going through a dealer. Some dealers want over $100 a tube, which is out of my budget. I see the same tubes selling on Ebay for $50 a tube. The most anyone seems to sell is 4 at a time though. Thanks in advance for any advice.
Regards,
John
Regards,
John