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.
This is an old test circuit for integrated TTL counters, feeding a Nixie tube, common at the time....
This old oscillator using germanium transistors has a high impedance headphone as inductor to...
This preamp with several inputs using germanium transistors from the time was found in Japanese...