The transistor used in this circuit is uncommon today. AC124 or equivalent such as AC188K and 2N2431 can be used. The circuit is from the 80's and makes use of transformers.
This circuit was found in the 1967 RCA SCR manual. The circuit generates approximately 300 V at a...
We found this circuit in an old 1980s documentation. The circuit can be implemented with modern...
Quadrature Generator for Transistor and SCR Testing This circuit was found in US 1980s...