From the very simple audio solution , to the high-end Value Amplifier for those who appreciate sound at its finest.

1-5 Days
Weight: kg

Whadda Police Siren Kit WSAH2604

Replacement for Velleman K2604

Enter the world of amazing electronic sounds and noises. Create or imitate sirens of all kinds by adjusting 3 trimmers. Powerful sound with a 2W amplifier on the PCB.
Dimensions: 79 x 57mm
Power Supply: 8-14Vdc
1-5 Days
Weight: kg

Whadda 2 x 30W Audio Power Amplifier Kit WSAH4003

Replacement for Velleman K4003

The WHadda WSAH4003 is a small amplifier, constructed with the TDA2616 IC, with a maximum supply capability of 2 x 15Wrms (4 ohm) of 2 x 10Wrms (8 ohm). The IC is protected against overheating and short circuits. Additional rectifier and smoothing filter are unnecessary because alternating current can be connected directly with the unit.
Dimensions: 70 x 50mm
Power Supply: 2 x 12Vac / 2A
1-5 Days
Weight: kg

Guitar Preamplifier with Headphone Output Kit K4102

  Constructional Kit: Easy
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 so you can create your own sound.
Dimensions: 70 x 30 x 105mm
Power Supply: 9V Battery (Not included)
1-5 Days
Weight: kg

Whadda Volume and Tone Control Pre-Amplifier Kit K8084

Whadda WSAH8084 replacement for Velleman K8084

When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control. The Whadda WSAH8084 electronic kit comes complete with all input / output connections and potentiometers. Furthermore it is possible to amplify or attenuate the input signal.
Dimensions: 105 x 70mm (PCB)
Power Supply: 2 x 12Vac / 100mA
1-5 Days
Weight: kg

SD/SDHC MP3 Player Kit K8095

  Constructional Kit: Professional
Finally it is possible to build your own MP3 player! Create you own home audio system, jukebox, jingle player, audio messages or sound effects.
Dimensions: 130 x 99mm (PCB)
Power Supply: 12Vdc / 100mA
1-5 Days
Weight: kg

Whadda Audio Analyser Kit WSAH8098

Replacement for Velleman K8098
A small compact spectrum analyser, suitable for panel mounting or fitting in to existing equipment.
Dimensions: 128 x 64 x 35mm
Power Supply: 12Vdc / 75mA
1-5 Days
Weight: kg

Whadda Universal Mono Pre-Amplifier Kit WSAH1803

Replacement for Velleman K1803

This kit was developed as module for a number of audio applications where the input signal is too weak. Applications such as a microphone pre-amplifier or for signal level correction.
Dimensions: 30 x 44mm
Power Supply: 10-30Vdc
1-5 Days
Weight: kg

Whadda 7W Mono Amplifier Kit WSAH4001

Replacement for Velleman K4001

The Whadda WSAH4001 is a small amplifier,constructed around the TDA2003 IC, capable of delivering 4Wrms at 4 ohms. The IC is fully protected against overheating and short circuits. A conventional direct current is sufficient as power supply.
Dimensions: 55 x 35mm
Power Supply: 8-18Vdc 0.5A
1-5 Days
Weight: kg

Whadda Pink Noise Generator Kit WSAH4301

Replacement for Velleman K4301

A good pink noise generator and a spectrum analyser are indispensable if you want to analyse the acoustic properties of a room (usually a living room). Moreover, you also need a microphone with a frequency characteristic that is as linear as possible (from 20Hz to 20kHz). If you have an equaliser, then the response can not only be checked but also corrected. The kit is easily adapted to produce "white noise"
Dimensions: 72 x 43mm (PCB)
Power Supply: 9-12Vac or 12-15Vdc / 5mA
1-5 Days
Weight: kg

Whadda Mono VU Meter 10 LEDs Kit WSAH4304

Replacement for Velleman K4304

VU meter with a scale consisting of 10 LED's and an adjustable input. Dot or bar indicator. Supplied with 1 front panel suitable for horizontal or vertical mounting.
Dimensions: 37 x 68mm
Power Supply: 10-15Vdc / 250mA