An electric guitar cannot be connected to just any amplifier or audio installation. This pre-amplifier has been designed for this purpose and provides you with a headphone output, allowing you to practice without disturbing others. Moreover, it is fitted with a special device for tone adjustment!

VELLEMAN IR LIGHT BARRIER KIT MK120 Applications: Announce visitors, warn against burglars, set boundaries, for science projects, etc. Specifications: Audible (85dB) and visible (LED) alert Range: 3.3ft to 13ft On/off switch provided Power Supply: Transmitter: 9V DC / 50mA max.Receiver: 9V DC / 20mA max.9V battery holder and adapter jack included Dimensions: Transmitter: 2.2" x 1.6"Receiver: 3.9" x 2.0"

Build this pink noise generator kit to supply a flat noise as a test signal to analyze the acoustic properties of a room. Use this for setting up sound rooms, home theatres or any type of room where optimum sound quality is desired.

The Velleman Solderless Education Starter Kit is your first step toward the world of modern electronics.

Velleman Metronome Kit Speaker included. LED beat indication. Adjustable volume and beats / minute with potentiometers. On / off switch on board. Specifications: power supply: 9V battery (not incl.) dimensions: 2.4" x 1.7"

Create a barrier and ward off unwanted visitors with the Velleman IR Light Barrier Kit.

What if you need to do more than dim a resistive incandescent light in your DMX control chain? What if you need to provide an on/off function? Just like the K8039 dimmer, if you are switching a device that doesn't have a standard DMX control input, you're pretty much out of luck... unless you have this handy little relay board! Here's how it works: First we plug this relay board into the DMX control daisy-chain (or directly to a controller if that's all you're controlling). Next, set the dip switches to the desired DMX address. There can be up to 512 addresses in a single DMX chain, so you've got plenty of room to add more devices later! Finally, map that address in your controller, and you're now "talking" to the relay switch with the controller, and can enable the on/off function of the... Less

Boosts sound up to 50 times with the Velleman Super Stereo Ear Kit.

Check your IR remote for proper operation with the Velleman IR Remote Tester Kit.

Made in Belgium. Dimensions: 113/32" x 513/32".