This interesting digital counter with relays with complementary outputs was found in the Radio Electronics magazine of October 1961. The supply voltage is in accordance with the relays used.
This circuit is suitable for use with 1400 kHz range FI receivers. Changes can be made to other IF...
This circuit came out in the American magazine Electronics Now, in a 1993 issue. The magazine no...
This circuit produces rectangular and triangular signals using two 741 operational. The source must...