This flip-flop circuit with general purpose transistors was found in American documentation from the 1980s. The maximum operating speed depends on the transistors. Diodes are commonly used.
This frequency band below 15 kHz converter was found in a Popular Electronics from the 90's. The...
We found this circuit in 1967 General Electric documentation. SCRs can be replaced by current...
Turns Ratio Between Windings Impedance Ratios 100:1 10 000:1 99:1 9 801:1 98:1 9 604:1 97:1 9...