EXP-100F and EXP-100 Hammond expression pedal bulb 

8-pin to 1/4″ Adapter for Hammond Organ SK1, SK2 Organ

$ 40.00

AD3-12502C Power Supply Hammond SK1, SK2, XK-1C Organ

$ 99.00

CU-1 Half Moon Switch for Hammond Organ XK-3 XK-3C

$ 149.00

EXP-100F Expression Pedal for Hammond Organ

$ 229.95