The Velleman K1803 Mono Pre-Amplifier was developed as a pre-module for multiple audio applications. It provides that extra power boost when there is insufficient input signal strength for your application. As a universal pre-amplifier, the K1803, has multiple audio applications, but it is perfectly suited to act as a microphone preamplifier.
This kit has been developed as pre-module for a number of audio applications where there is insufficient input signal.
Applications as a microphone pre-amplifier or for level correction.
power supply: 10-30V DC / 10mA; output impedance: 1Kohm; adjustable output level: max. 40dB; frequency range: 20Hz to 20kHz ± 3dB max
.input signal: 40mV; PCB dimensions: 1.2" x 1.7"; options for power supply: K1823
Kit - Basic Soldering Required