Thanks. Which is a rectifier tube? Enclosed manual description. Could it be V7?
V1A-- Input Stage
V1B-- 2nd Gain stage CH1/CH3,
3rd Gain Stage CH2
V2A-- 2nd Gain Stage CH2
V2B-- n/a
V3A-- 3rd Gain Stage CH1/CH3,
4th Gain Stage CH2
V3B-- 4th Gain Stage CH1
V4A-- Reverb Send
V4B-- 2nd Drive stage...