Power Amplifier 3W with 6BX7

R1= 22Kohm
C1-7-9= 100nF 1KV
V1= ECC81
R2-3= 1Kohm
C2= 220uF 350V
V2= 6BX7
R4-5= 1.5Kohm
C3= 150nF 400V
T1= 220V@2X250V/6.3V/6.3V
R6-7= 470Kohm
C4= 100uF 25V
T2=Audio transformer
R8-9= 1Kohm 2W
C6-8= 2X100?F 350V
RV1= 250Kohm Log. pot.
D1-2= 1N4007