Keyboards! *=circuit bent

In this picture you see...

 

Casio SK-1

Casio PT-1

*Casio PT-10

Casio PT-80

Casio PT-50

*Casio PT-100

*Casio MT-55

Casio MT-205

Yamaha PSR-77

Yamaha QY-100 midi sequencer

*Yamaha PS-200

*Hing Hon EK-001

Piano horn

Mini toy keyboards

E-mu Xboard 49 Midi Controller

 

 

Done