Panel switch wiring

This 13KV High voltage Power supply Circuit Diagram has an inverter around Q1 that supplies 150-V pulses to the converter of SCR1 and C2. The output of ?2 is a 4.5-kV pulse that is multiplied by the voltage-tripler network (right) to produce 13.5 kV. R1 is a 3k to 500K CT transistor audio transforfiler, L2 is a flash tube trigger transformer with a 6-kV secondary.