Fat Controller - Schematic
| GATE sub-circuit | S&H sub-circuit |
 |
 |
Note that the 3 gate outputs have no protection against being patched into another output by mistake. To safeguard against damaging the 2N3904 output transistors it is recommend to put a 100R resistor in series with each gate output. This will protect against connecting to voltages up to 20V.
More ..