We found this circuit in a 1963 Radio Electronics. It can be used for remote control. The frequency depends on the coil and the power is supplied by a single battery.
Originally intended to detect EMPs produced by tests or atomic blasts, this interesting circuit...
We found this circuit in 1967 General Electric documentation. SCRs can be replaced by current...
This power stage with two counterphase transistors and coupling transformers was shown in Radio...