This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
We find the original version of this circuit in an English publication (1986). It is a...
This FET stage circuit was obtained from old American documentation but can be applied to any FET....
This CMOS 4001 oscillator alternately turns the relay on and off at times set by R2. The circuit is...