12 Volt Strobe Circuit: this circuit
uses12V DC instead of
mains AC. This is very good idea if you don't
want to mess with direct mains voltage connected
circuit or you want to run the stroboscope from
batteries.
Flash Slave Trigger:
Flash slaves are used when you need to
supplement one flash unit with one or several
more. This slave trigger simply triggers those
other units. It does this by "seeing" the first
flash (using a phototransistor) and triggering
the other flashes a few microseconds later. The
sensitivity of the circuit is adjustable to
compensate for ambient light or dimmer than
usual master flashes.
Flashing High Intensity LED 3rd
Brake Light: This
circuit to make a flashing3rd brake light
assembly was designed to be easy to locate all
the needed components and reasonably in
expensive to build.
Welch Scientific Model 2153C
Stroboscope: a
schematic for a typical line operated variable
rate stroboscope used for the visualization of
moving parts as well as rotation speed or
frequency determination of rotating or vibrating
machinery