This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular Electronics. The integrated circuit is uncommon today.
This circuit was found in a 1967 RCA SCR manual. It uses period components that can be replaced with...
This circuit for the power grid was found in the June 1969 Radio Electronics magazine. The load is...
This fuzz effect is from a 1988 Italian publication, but it can be easily assembled, as the...