vortex valve spring reverb

all valve amplifiers.  the vortex is designed to be used in a control room situation.   fed from an aux send and equalizer –  either outboard or ITB –  so as to tailor the signal that hits the spring . and then the vortex output should feed another eq to feed the reverb back into the…

grampian 636 spring reverb schematic

heres a drawing of my modified grampian 636. parts of it mite look a bit weird. without delving back into it (where i was for ages already) i can say that it works very sweet. theres several opotunities inside the circuit for gain changing. the mic stage gain control is very strange. i might be…

vortexion spring reverb

the vortexion is designed to be used in a control room situation.   fed from a  aux send and equaliser –  either outboard or ITB – so as to tailor the signal that hits the spring.  very important . and then the vortex output should feed another eq to feed the reverb back into the mix. …