Standard 1 MHz Oscillator (CB9653E)

We found this circuit in an old American documentation. Transistors can be modern equivalents.

TL064 Audio Distributor Amplifier (CB15305E)
This configuration found in other companies' manuals is from Motorola's 1993 Linear Interface ICs....
Compressor and Expander (CB19729E)
This circuit compresses signals and then expands them to facilitate the transmitter. The...
12V x TTL Coupler (CB24896E)
The figure shows how to use a 12 V signal to trigger a TTL gate using an optical coupler. The...