Scan of the manual for the British-made Bandive/Accessit spring reverb – click either image below to go the pdf. These are great reverbs (mono in, stereo out) and also overdrive extremely well. A clever piece of British design.
Also here’s the circuit diagram, as pictured on top of the reverb tank part of the unit.
![ACCESSIT REVERBERATION UNIT – OPERATING MANUAL](http://soundgas.com/cdn/shop/articles/Bandive-Accessit-Stereo-Spring-Reverb-Cover-3-1-1024x796.jpg?v=1710500419&width=1100)