We found this circuit in 1967 General Electric documentation. SCRs can be replaced by current equivalents. The circuit is for 110V power grid.
The Variable Frequency Oscillator (VFO) shown in the figure can generate signals in a frequency...
This circuit was obtained from a 90s Radio Electronics. The integrated circuit used HAA11508 is not...
This circuit was found in a 1980s American schematic. Transistors can be modern equivalents. The...