Found in EEE documentation, this circuit can have the duration and frequency adjusted separately. SCRs can be modern equivalent types.
The critical component of this circuit is the transformar. We found it in an 1980s documentation....
This PLL circuit includes a small amplification stage. We found it in the December 1989 Radio...
January 2017 - Mouser Electronics is introducing new, ultra-thin Vishay Displays OLED modules. The new...