Found in a 1964 Electronic Design this transistor limits signal amplitude to a load. The output is limited to 0.2 V using germanium diodes.
This VCO or Voltage Controlled Oscillator uses common components. TR1 can be a BF245 and TR2 a...
The transformer for this project found in a 1986 documentation is an output type, found on old...
We found this circuit in a 1978 documentation. The SCR conducts when the regulator's output...