hello, I have a thunder sound 70 which has ressenble exsactement you one amp
my reverb is pretty sound (as in a church) on tremolo I prefer HS
has one for his neutral it has pre-amp ECC82 and ECC83 and a total of 5 lamps
2 el 504 for power ... for thou make photo side of the circuit component
and for checking out my side welding tremolo davance thank you .... I buy a v'ai blackstar
with 2 ECC83 and a tremolo pedal and serat perfect .... I play blues, rock n roll
and all that is 70s rock ... well super davoir find an amp that suits me ..
thank you .. aplus
I forgot the jack is only for a pedal that makes (2 volume.et push on / off tremolo, reverb)