This circuit oscillates in the fifth harmonic of the crystal frequency. The circuit is from a 90's documentation. L1 must be according to the desired frequency.
This dimmer for incandescent lamps was obtained from an American 1990s documentation. The circuit...
March 2017 - The integrated circuit division of IXYS is presented the integrated relay that makes...
September 2016 - It can be obtained from Mouser Electronics coils for inductive battery chargers...