Lafayette Echo-Verb

[spartadrive_in]

Hello!
Does anyone have the schematic to this one lying around? My signal is great but a bit hummy when in the higher range. Also, no dry signal passes. Also, also, I'd like to build a foot switch for it since it's missing.

Thanks!

[spartadrive_in]

bump?

[spartadrive_in]

Still need help on this one please.