I need some information on the pre amp valve layout for the Princeton.
Reading left to right from back:
(1) 12AX7A
(2) 12AX7A
(3) 12AT7
(4) 12AX7A
What do each of these valve do? (e.g. Reverb tube, Phase Inverter)
Which ones, if any, are balanced?
Many thanks
Paul
