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James Stewart Campbell

Owner, MEDesign

James Stewart Campbell, EE, MD, is the owner of MEDesign, Pfafftown, N.C.

[email protected]

James’s Recent activity

Tiny Circuit Saves Big On Relay Power
Mar 15, 2006
Designers frequently use special circuits to reduce the power required to hold a relay in the latched position. Analog circuits such as the "brute force" resistor-capacitor solution or the time-variable...