Lab

Transistor Switch Trigger by LDR

An interactive transistor, LED, resistor and LDR circuit built in the DCACLab online simulator by Stephen Smith.

Preview of Transistor Switch Trigger by LDR
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What's inside

  • 3× Battery
  • 1× Power Source
  • 2× Resistor (458 Ω, 506 Ω)
  • 1× LED
  • 2× Transistor
  • 2× Relay
  • 1× Lamp
  • 2× LDR
  • 1× MCB

Tags

Power Source Transistor LDR MCB Battery Resistor LED Relay Lamp

About

By Stephen Smith
Saved November 11, 2026
16 views
Page: dcaclab.com/circuits/87952-transistor-switch-trigger-by-ldr

Embed this circuit

<iframe src="https://dcaclab.com/experiments/87952-transistor-switch-trigger-by-ldr/iframe" width="560" height="410" frameborder="0"></iframe>

Cite: Smith, S. (2026). Transistor Switch Trigger by LDR. DCACLab. https://dcaclab.com/circuits/87952-transistor-switch-trigger-by-ldr

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