Institute Newton C. Braga

Circuit Bench

Sensitivity control for phototransistor (CB8081E)
This method of controlling the sensitivity of a phototransistor was found in an Electronics Now from the...
OPAx388 Precision Operational Amplifiers
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...
1 MHz Pierce Oscillator (CB8050E)
The frequency of this Pierce oscillator, found in 1969 documentation, depends on the crystal. The...