Pulse amplifier (T442E)

Found in MIT documentation, this circuit is intended to amplify pulses for oscilloscope displaying. Observe the supply voltages.

Two-Transistor Oscillator (MSB019E)
The circuit is a multivibrator version using two NPN general purpose transistor. This circuit can...
APX803L Diodes Incorporated Micro Voltage Detectors
Available at Mouser Electronics this component of Diodes Incorporated consists of a voltage...
Music Synthesizer (CB5967E)
This circuit makes use of a specific 80's component and was found in an American manual of the...