Found in a 1980s American documentation, this circuit is intended for amplifying 10.7 MHz video signals, with a gain of 100dB.
This circuit, suggested by Siemens, allows the activation of 24 V solenoids from TTL LSL signals,...
In the figure we have the way to linearize the response of a TTL port with the use of a feedback...
In the figure we have the original version of an amplifier with high input impedance, 1.2 M ohms....