Build a custom volume pedal for your synth - Make:
Vox volume pedals - for organs and guitar, 1950s-1960s
How to Control Your Keyboard's Output with Volume and Expression Pedals...
StudioLogic VP-27 Organ Style Volume/Expression Pedal - AVLgear.com
Swell Pedal from Baldwin Model 5 Organ « Keith's Electronics Blog
ModularSynthesis - Hammonds
Pipe organ lesson 5 pedals - YouTube
Vox Organ Z Leg Set w/ Volume Pedal and Box for Continental, Super Con – CV Keyboards
Amazon.com: Hammond EXP-100F Expression Pedal : Musical Instruments
StudioLogic FP-50 Organ-Style Expression & Volume Pedal FP-50
Organ volume pedal Farfisa? volume pedal | Reverb
Vox Organ Z Leg Set w/ Volume Pedal and Box for Continental, Super Con – CV Keyboards
Farfisa Organ volume pedal 1960's | Reverb
Ernie Ball Volume Pedal | Vintage Guitar® magazine
Hammond EXP-100F Expression Pedal for XK3C and SK1
Vintage Gulbransen 64' Organ Expression / Volume Pedal Mod: M-5 / H, S/A: EC7 | eBay
Yamaha FC7 Volume Pedal For PSR series Keyboards + Tyros
Hammond Organ Volume Pedal Treadle With Linkage From CV | eBay
Volume Pedal vintage keyboard organ optical 3 pin cable | Reverb
Expression pedal - Wikipedia
Feature – 1960s VOX Volume/Expression
Hammond Organ Model 8212 Volume Pedal | eBay
Lowrey DSO Organ Volume Control Pedal – Glider with side switch – ASA College: Florida
Repairing a Crumar T1 Organ Swell Pedal « Keith's Electronics Blog
