Bridge Signal Source (CB25892E)

This circuit provides voltages and a 1 kHz signal for measurement bridges. The circuit is from Electronics Now magazine, September 1995.

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Pulse stretcher (CB21436E)
This circuit was found in old documentation. D1 can be a diac. | Clique na imagem para ampliar...
Light operated switch (CB8278E)
The circuit shown was found in a 1967 RCA manual. Modern equivalent components can be used. The...
Optical Coupler Shield - II (CB1326E)
This shield can be used both to interface microcontroller circuits or TTTL. The resistor in series...