This circuit was obtained from an 80s factory manual. The integrated circuits used are uncommon today, but the diagram is for reference only.
This circuit was found in ancient American documentation. It provides a 70 Vpp signal at...
This circuit appears in various parts of this site and this section, with diverse origins. This is from...
This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular...