This circuit implements two logic functions at the same time. The diodes are for general use and the resistors have typical values of 2k2 for logic of 5 V.
This circuit was found in ancient American documentation. Diodes are general-purpose types. |...
This 80's General Electric circuit is guarded by the noise-guard for operating current. The...
This circuit was found in the January 1975 Radio Electronics magazine. The diodes are current...