We found this circuit in a 1968 Electronics World. The transistors are from the era and information about the transformer was included. Transistors support current equivalents.
We found this circuit in an 80's manual. The same configuration can be adapted to make use of...
This Mullard circuit was found in a 1969 documentation. It uses complementary transistors on the output and...
This is the traditional version of a neon flasher, found in a 2004 documentation. The capacitor...