This circuit was found in a 1967 General Electric manual. It is intended for the control of high voltage Nixie pipes used at the time. SCRs may be equivalent.
We find this circuit in an old American documentation. It can provide a 25 dB compression in a...
This amplifier with a 9 MHz passband and 10 voltage gain with two transistors was found in...
This circuit safely replaces common locks, since, instead of the key, the opening is made with the...