VTL5C3 Vactrol

Code: N72EH

  • A single vactrol for use in amplifiers or analogue synthesisers
  • Uses an LED and LDR to control the resistance in a circuit
  • 75 dB dynamic range and high dark resistance
  • Fast response time – typically 2.5 ms
  • Limited stock may be available in some stores. Call us on 0844 557 6000 to check

Product details

VTL5C3 Vactrol

• A single vactrol for use in amplifiers or analogue synthesisers
• Uses an LED and LDR to control the resistance in a circuit
• 75 dB dynamic range and high dark resistance
• Fast response time – typically 2.5 ms

What is a vactrol?
A vactrol (or resistive opto-isolator) is an electrical component that consists of a light emitting diode (LED) and a light dependant resistor (LDR or photoresistor). When the voltage passes across the LED, the resistance of the LDR changes. This means that you can control the resistance in a circuit by altering the voltage to your vactrol’s LED.

What can I use this vactrol for?
Vactrols can be used in guitar amplifiers, analogue synthesisers and amateur (HAM) radio systems. As the input current increases, the output resistance decreases. The VTL5C3 has a good 75dB dynamic range and a low temperature coefficient of resistance. The VTL5C3 has a fast response time typically 2.5ms (maximum 35ms) with a small light history memory.

Bulk Prices

Item code Item name Quantity Price
N72EH VTL5C3 Vactrol (1+) £4.96

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£4.96

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