This flip-flop with neon lamps was found in a 1969 publication that deals precisely with neon lamps. Observe the high supply voltage.
This buffered version of the previous circuit appeared in an article in the September 1989 Radio...
This conventional astable uses two NPN transistor and was found in a publication of the year 1968. The...
This circuit was found in a publication of the year 1968. It uses complementary transistor to...