Long maintenance circuit (CB8866E)

A 0 V signal initiates sampling on this circuit suggested by documentation from the 1970s. The integrated circuits used are uncommon today.

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Short circuit test (CB7945E)
We have articles on the site with the name “lamp test” for this configuration found in a Popular...
Differential Amplifier and 15 MHz Low Pass Filter (CB12934E)
The circuit we present is suggested by Linear Technologies (www.linear.com) and makes use of an...
H Bridge bidirectional sensor (CB5397E)
This current sensing circuit for applications up to 10 A has been found in a Linear Technology...