This circuit uses an impact sensor transistor called Pitran rare today. The circuit is from 1969 American documentation.
May 2017 - Mouser Electronics announced the availability of the LMX2491 a new PLL for frequencies...
March 2017 - Mouser Electronics announces the availability of MAX17523, an overcurrent and...
This is a single IC voltage regulator that can acts in the range from 1.2 to 20 V. Output currewnt is up to...