The integrated circuit used is uncommon today. The circuit was obtained in the Philips integrated circuits manual of 1990. The reference voltage-range is from 0.5 to 9.0 V.
This circuit, suggested by National Semiconductor, decodes audio signals from stereo TV...
Found in a 1970 documentation, this circuit makes use of 741 operational amplifiers that are...
Suggested by General Electric in 1967 documentation this circuit uses an isolation transformer to...