Negative Feedback Stage (CB6131E)

This circuit is from a 1967 US publication. The configuration can serve as a basis for designs with modern components.

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Two conventional 78xx power supplies (CB25958E)
This circuit appeared in the June 1990 issue of Radio Electronics magazine. Integrated circuits must...
SCR Photosensor (CB16109E)
Lockout shooting, due to the incidence of light, can be achieved with the circuit in the figure. In...
Galena with FET Preamplifier (CB10212E)
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