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.
The characteristics of this amplifier that does not require a symmetrical source are given in the...
The MC1556 integrated circuit is an operational amplifier from Motorola. The circuit is from a...
This circuit is for collectors. It is the circuit of one of the most popular transistor radios of the...