What does V3 do in this?

[AmpAwe]

crate_v33h_sch.pdf

What does the v3 tube do in this schematic? Thanks

v1b is OD channel
v1a, v2 is clean channel
v3 ?

Thanks

[pompeiisneaks]

V3 is the phase inverter.

~Phil

[AmpAwe]

thank you - just phase or is there some gain there also?

[pompeiisneaks]

The phase inverter splits the input signal into an inverted and a normal signal to send the signal to each side of the Push Pull output pair in a push pull amplifier. Read this to understand more:

http://valvewizard.co.uk/

there are 4 different articles on the left side about different kinds of phase inverters and what they do.

also https://robrobinette.com/How_Amps_Work. ... _Tail_Pair is a generally great overview of a lot of how one specific kind of phase inverter works.

~Phil

[AmpAwe]

THANK YOU!!!