Found in a 70s RCA manual, this circuit uses a transistor of the time for an UHF L band oscillator. Details of the resonant circuit, which is critical, were not given.
We find this circuit in the manual of the used integrated circuits. The manual is from Linear...
Of course, the current is extremely small, but a voltage of 300 V can be obtained from 9 V of a...
August 2016 - It can be obtained from Mouser Electronics the new temperature and humidity sensors from...