Gate clamp zener. DCI-111 Most of our controllers use the same current source and zener as the NCCs. The DCI-11 certainly does. So, it you reverse connections to this, you will probably blow the current source and maybe the 9v1 zener diode. The circuit of this is available via our circuits section where there is also a technical description.
Current source is at top right of the circuit.
Last updated 8th March, 2001.