Audio Research D70 MKII

[audio king]

No. VS110.

https://www.arcdb.ws/model/VS110

 

[audio king]

Gee, does that heavy-gauge blue and white wire under the chassis look familiar? They were still using it (even for the inputs...) when they introduced the VS110 in 2003!

Interweb pic of the VS110 underside:

 

[Dilbert]

Point taken about the trim pots. At the moment, any noise is roughly the same in both channels. A temporary solution to the 12AX7 oscillation issue was to replace it with a 12AT7, it settled down nicely with the slightly lower mu tube.

I’m still scratching my head about the voltages shown on the schematic I.e. 275V plate and 15V cathode.…The zener values don’t agree. It must be an error.