Digital Fuel Gauge (CB26173E)

This two-digit circuit was found in the 1999 Radio Experimenter Handbook. It uses the CA3161 and CA3162 A/D converter pair common at the time.

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Multitester (CB3834E)
This simple multitester tests continuity, semiconductors, leaks, and other common component...
High Input Impedance Amplifier (CB4027E)
This configuration can be implemented with equivalent operations. The circuit is from the 1990...
Tesla Coil (CB26185E)
This circuit is one of many that we have in our section. It was taken from the Electronics...