Selmer ep200 Echo Boost

Selmer echo boost, blue smooth hammerite finish, handmade turret board, circuit half on board and half on the tube socket, tropical fish input capacitor, 12v dc power only.

Selmer Echo Boost

A Selmer ep200 echo booster with an added gain control for Tim.

Selmer Echo Boost - Better photos!

Noticed there was a smudge on the lens of the camera after taking the last pics of the Selmer Echo Boost so here are some better shots with a clean lense. Soundclip (level only halfway up on booster) here.

Selmer Echo Boost

Finished Booster based on a cross between the Valvecaster and the Selmer Echo 200 input section!  Soundclip to follow.

12au7 Selmer Echo Boost schematic

I have been toying with the idea of doing a booster based around the input section of an old echo unit for a while,  I found a schematic for a Selmer echo 200 where the input section looked very similar to the Valvecaster (apart from it uses an ecc83 valve rather than a 12au7).  So I made this schematic that uses elements of both circuits.  Have breadboarded it and it sounds good!  Nice tone and overdrives in a pleasant way with chords, also reacts well to playing dynamics.