Found in Mallory documentation from 1968 this circuit uses an integrated circuit from that time. The circuit has a flat response from 10 Hz to 700 kHz.
This circuit was obtained in a 1982 English magazine. The purpose of this circuit is to make an...
This is a change from the previous interface, also used an uncommon operational one today. The...
This circuit uses a capacitor to momentarily reduce the anode-to-cathode voltage of the SCR for...