Found in a 90s R-E Experimenter Handbook, this circuit has a greater gain than the previous one for presenting two stages. The integrated circuit used is uncommon today.
This circuit senses two-way currents serving to monitor battery charge and discharge. We find it...
This very low power circuit is based on the ICL7860. We found it in an Electronics Now from April...
This circuit can generate signals up to 5 MHz according the power supply voltage. Frequency is...