Roman numeral display (CB22160E)

This circuit shows numbers I II and III when mounted on its side, depending on the position of the selector switch.

NAB Preamplifier (CB846E)
This preamplifier is intended for the use with magnetic pick-ups. Power supply must have voltages...
Direct Read Inductance Meter (CB12437E)
This circuit converts inductances on two scales into voltages. The circuit was obtained from a...
100 kHz XTAL Oscillator (CB14364E)
The circuit shown was found in a 1994 Linear Applications Handbook by National Semiconductor. The...