Help needed - No sound Blues Junior conversion.

[Toffe007]

So i´ve double checked the wiring, meassured the the powersection, biased to 25mV but still no sound . How to advance? Only thing i found is that filement is changed for el84 V4 and V5. Pin 4 and 5 is wired reversed. But  this is the case in all hoffman building pictures but not in schematics.

[PRR]

Heater "polarity" does NOT matter, any more than to a 2-pin-plug room-heater.

What is "no sound"? A small hiss? Hum? Or genuinely NO sound? Even when you bump the tubes? NO sound on a tube amp is often the speaker connector mis-wired.