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npn board

An interactive LED, transistor, resistor and battery circuit built in the DCACLab online simulator by Chris Kiley.

Preview of npn board
Open in the lab Embed The simulation runs as a demo that pauses after two minutes; open it in the lab to keep going.

What's inside

  • 1× Battery
  • 2× Resistor (3.41 kΩ, 213 Ω)
  • 3× LED
  • 1× Transistor
  • 1× Switch

Tags

Transistor Switch Resistor Battery LED

About

By Chris Kiley
Saved October 14, 2025 · updated January 15, 2026
1,113 views
Page: dcaclab.com/circuits/85873-npn-board

Embed this circuit

<iframe src="https://dcaclab.com/experiments/85873-npn-board/iframe" width="560" height="410" frameborder="0"></iframe>

Cite: Kiley, C. (2025). npn board. DCACLab. https://dcaclab.com/circuits/85873-npn-board

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