This circuit was found in an Electronics World of 1969. The circuit has a drain current of approximately 150 uA. The frequency generated is 1 MHz with the indicated components.
This interesting circuit found in American documentation generates a busy signal, without you...
In this circuit R1 is 56 ohm and R2 is 220 ohm for the 110 V network. SCRs are according to the...
We found this circuit in a 70s EDN. The circuit makes use of operational of the time. | Clique na...