This circuit found in an American documentation from 1964, alters the duration of a pulse and can operate at frequencies up to 10 MHz. The transistors are from that time.
Found in a 90s 303 Circuits, this circuit uses the KTY10 sensor, widely used at the time. | Clique na...
This circuit was found in an English magazine from 1973. The magazine no longer exists, but the...
We found this circuit in an old Argentine publication from the 1970s. The transistor can be the...