Digital accelerometer (CB21045E)

Found in Popular Electronics from the 90's, this circuit makes use of components from the time.

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Simple Inductive Remote Control (CB10267E)
This circuit is very critical in the adjustment. The coil should have at least 1000 turns of fine...
Electronic Die (CB12266E)
By pressing and releasing PB1, only one LED is lit, drawing a number from 1 to 6, as in a die. The...
EMG Monitor (CB13793E)
This electromyography monitor is from a 1978 publication on operational amplifiers. The components are...