I recently began in electronics and I was wondering why a Programmable Uni-junction Transistor needs two resistors "connected" to the base; one from the positive wire of the power supply to the base, and one from the base to the negative wire of the power supply?
Why does the gate have to be connected to the negative end of the power supply?
Does a PUT have to be oriented in this way?
Disregard the purpose of the actual diagram, I'm only wondering about PUT's. I substituted a diode for the actual PUT because they don't seem to have one for schematics.