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Recently I made one socillator and one pulse generators,
but all of them suffers from un-clean waveform. There are
some clear overshoot/undershoot on some waveforms I get.
I think I have added enough bypass capacitance on the
circuit board. Especially to the pulse generator,
it has a...
simple bjt amplifier
I wired a simple BJT common emitter amplifier,
it is 2N2222A. The configuration is that a pair
of resistor forms a voltage divider which bias
the transistor at 1/3 of the supply voltage.
I also put a small about 20 Ohm resistor on
the emiter. Output is taken from...