0 to 200 nA Current Meter (CB5281E)

This circuit was obtained from a 2005 Linear Technology manual. It is based on company components and is powered by two 1.5V batteries.

Wiper Water Sensor (CB4968E)
The purpose of this circuit is to sense the water level in the windshield wiper reservoir. The circuit...
Audio Compressor (CB4103E)
We find this circuit in an old American documentation. It can provide a 25 dB compression in a...
AC Millivoltmeter (CB4514E)
This alternating voltage voltmeter was found in a 1967 magazine. The magazine no longer exists, but...