Lights and Display Board Circuits

Adjustable Strobe Light Schematic Circuit Diagram

An Adjustable Strobe Light is a specialized lighting device known for emitting rapid, intense bursts of light. It is sometimes referred to as a strobe, stroboscope, or stroboscopic lamp.

This particular strobe light utilizes a potent “horseshoe” Xenon tube, delivering increased luminosity. Additionally, it provides the flexibility to adjust the flash rate, allowing you to set it to a maximum of approximately 20Hz. It is crucial to avoid direct eye contact with the flash tube when the device is in operation, given its intense output.

Circuit diagram

Adjustable Strobe Light Schematic Circuit Diagram 1

PC Board Layout

Adjustable Strobe Light Schematic Circuit Diagram 2

Parts Placement

Adjustable Strobe Light Schematic Circuit Diagram 3

Parts

R1 250 Ohm 10 Watt Resistor
R2 500K Pot
R3 680K 1/4 Watt Resistor
D1,D2 1N4004 Silicon Diode
C1, C2 22 uF 350V Capacitor
C3 0.47uF 400 Volt Mylar Capacitor
T1 4KV Trigger Transformer (see “Notes”)
L1 Flash Tube (see “Notes”)
L2 Neon Bulb
Q1 106 SCR
F1 115V 1A Fuse
Misc Case, Wire, Line Cord, Knob For R2

Notes

  1. T1 and L1 are available from The Electronics Goldmine.
  2. This ciruits is NOT isolated from the ground. Use caution when operating without a case. A case is required for normal operation. Do not touch any part of the circuit with the case open or not installed.
  3. Most any diodes rated at greater than 250 volts at 1 amp can be used instead of the 1N4004’s.
  4. Do not operate this circuit at high flash rates for more than about 30 seconds or else C1 and C2 will overheat and explode.
  5. There is no on/off switch in the schematic, but you can, of course, add one.

A resistor serves as a passive electrical component with two terminals, effectively introducing electrical resistance into a circuit. Within electronic circuits, resistors find application in various capacities, including the reduction of current flow, adjustment of signal levels, voltage division, biasing active components, and the termination of transmission lines.

Resistors essentially function to restrict or regulate the flow of electrical current within an electronic circuit. Additionally, they can be employed to supply a specific voltage to an active device, such as a transistor.

The standard unit for measuring electrical resistance, typically assessed with direct current, is the ohm (Ω). This unit is named in honor of the German physicist and mathematician Georg Simon Ohm (1789-1854).

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