Surge voltage generator (CB21465E)

Found in a 1967 US magazine this circuit generates positive and negative voltage pulses from a negative transition of the input signal.

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Vswr protection circuit (CB20375E)
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This high input impedance amplifier stage was found in a 1963 documentation. The transistor...
Photodiode Amplifier (CB4846E)
This setting appears multiple times on the site from different sources. This is from a 2000 manual...