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Stroboscope, strobo schematic

Attention! This stroboscope circuit is connected to 220V, measurements and experiments are very dangerous even after unplugging. P1 potentiometer must have plastic swivel. The main part of this stroboscope schematic is the lamp with gas discharge in U shape and is filled with xenon. To light the lamp we need 5 - 10kV electric potential.
P1 [...]


Sensitive potentiometer, commutator

This sensitive commutator is based on IC1, one operational amplifier with a high input impedance. When the finger touches Se1 sensor, C2 is charged, this will cause the linear dropdown of the IC1 output voltage. When we touch Se2 sensor the opposite occur.
This sensitive potentiometer circuit has different applications and can be user anywhere is [...]