Driver for oscillograph (T459E)

This circuit from an old MIT documentation excites an oscillograph element, an old waveform viewer.

Logic Level Tester (CB4469E)
This circuit can use both separate LEDs and a common cathode display when one segment indicates...
Amplifier with 741 – II (CB984E)
We adapt this circuit of Radio Electronics - March 1990. The magazine no more exists, but the...
LDLN025 250 mA LDO with Ultra Low Noise - STMicroelectronics
September 2017 - The new LDOs of STMIcroelectrinics LDLN025 for currents up to 250 mA and 1.5 to...