I have an old Bottlehead preamp that has an OD3 as the regulator.
What preamp was this?
I had to put it on duty since my Foreplay 3 is acting stupid. Left channel is weak and has eaten a couple tubes after several hours.
And I can't find the Extended manual. Already emailed the Queen for a push in the right direction.
Anyway I can't remember what the name of the OD3 regulated pre was? I see no discussion of it on the Legacy products board.
John