Inverter Adder (CB6435E)

This circuit was found in a Popular Electronics of the 90s. We can build it based on modern operational amplifiers like the 741.

Thermometer using thermistor (CB6407E)
This circuit is from a 1965 General Electric Hobby manual. The circuit uses only passive...
Signal Tracer (CB921E)
This circuit consists of a good perfromance audio amplifier powered from two or four batteries and has...
Get to know the Texas Instruments TPS7A92 (ART333aE)
The Texas Instruments TPS7A92 integrated circuit consists of a low-voltage (LDO) linear voltage...