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.

Two-tone solar buzzer (CB20493E)
This circuit was found in a 1991 publication. The transistor can be a general-purpose type....
Twin-T Oscillator using the TL051 NE108 (MSB117E)
Twin-T oscillator are a good solution for the production of low-frequency sinusoidal signals. The...
50 mA Battery Charger (CB878E)
This simple circuit is designed to charger AA or AAA Nicad batteries. Current can be changed...