Spare OKAY PCBs
$1.00 - $7.00
These are unpopulated, unassembled Printed Circuit Boards for the OKAY / OKAY 2. For schematic and assembly information, see the guide page.
| PCB | Description |
|---|---|
| bus 0.1.1 | Switches and distributes power from the 9v battery to the other boards and LED |
| 555_4040 0.1.1 | Oscillator and frequency divider, provides 12 octave output |
| SPST_VR 0.2.2 15 | Trimming potentiometers and pushbuttons set the 555's frequency |
| SPST_VR 0.2.2 14 | An additional set of SPST_VR board for the OKAY 2's extra keys |
| 386 0.1.1 | Standard headphone amplifier circuit |