We found this circuit in the Motorola manual of the component itself. The transistor can be the TIP31 mounted on a good value heatsink.
Found in 1967 Raytheon documentation, this circuit uses a company coupler consisting of a lamp and...
In a modern version this circuit can use an LED in series with a resistor in place of the lamp. The...
This circuit, when triggered, locks, and remains so until the source is switched off for a moment or...