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.
This circuit, which uses an unusual integrated, is from the Motorola Linear Databook of 1990....
Found in a 1965 Motorola documentation, this circuit uses a neon lamp as a trigger element. The SCR...
The sensor of this circuit is an NTC of 20 to 50 k resistance at room temperature. The circuit is from a...