Gain 10 Voltage Amplifier (T456E)

This 4-stage circuit has a voltage gain of 10 and negative feedback. The circuit was found in an old MIT publication.

12 V to 220 V converter 555 (CB17238E)
The power of this converter is not the greatest, it can only supply small fluorescent lamps,...
Battery Charger with the TL317M II (CB1247E)
This circuit is in the very datasheet of Texas Instruments that manufactures the component...
Remote control tester (CB7819E)
Found in a PE Hobbyst Handbook from 1991, this circuit uses a common photocell as a sensor. The...