Found in a1969’s neon lamp documentation, this circuit uses a high voltage transistor. The output currents reach 100 mA.
This digital timer provides timings from 1 minute to 10 hours with indication on a 3-digit...
Using only one general purpose transistor this circuit is powered by batteries. The lamp of the...
With the values of the components used in this circuit, the signal produced is 800 Hz rectangular with...