This narrowband data receiver is from the Philips Databook of 1990. The circuit is powered by 5 V and N1 has 3.21 turns, N2 1 turns with Q = 16.
The purpose of this circuit is to connect an appliance (fan, lamp, motor, soldering iron, etc.) or an...
Found on an 80's Radio Electronics, this two-section circuit is designed to pass the frequency...
This power step for relay activation was found in the 1964 RCA transistors manual. The circuit is of the...