This is one of the first radios with an integrated circuit. The circuit is from a Radio Electronics from November 1969. The circuit is powered by a 9 V battery.
This timer with an externally triggered neon lamp was found in Radio Electronics magazine from...
I found this circuit in an ond publication from 1958. The transistors are germanium types but the...
This low current circuit is suitable for powering the previous circuit and other strobe lamp...