Blocking Oscillator (CB21815E)

We found this circuit in the 1960 Mullard transistor manual. The transistor is made of germanium.

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240 kHz amplifier using the LF356 (CB3994E)
The circuit presented with low drift is from the Motrorola LinearDatabook of 1990. The circuit...
Triggered Sawtooth Generators LM3900 (CB15630E)
The previous circuit (CB15629E) can be changed to generate a sawtooth signal synchronized...
Dual adjustable symmetrical power supply (CB25957E)
This dual adjustable power supply was found in the June 1990 issue of Radio Electronics magazine....