The purpose of this circuit is to produce a quick discharge on a shorted battery to attempt its recovery. The diode must be high current and the transformer too.
This circuit was found in an English magazine from 1979. The magazine no longer exists, but the...
This traditional TTL anti-clock setting was found in a 1993 American documentation. The circuit...
The astable multivibrator shown by the figure can produce signals in the 10 to 10 000 Hz band...