Velleman Volume and Tone Control Preamplifier Kit

hi guys thanks for watching so this is a kit that I built myself and sorry I didn't include any video footage of me soldering the kit together but anyway it's the universal mono preamplifier there aren't a lot of youtube videos on this kit it's a small little kit and to be as brief as possible the way it works is you power it with 12 volts DC here's the positive here's the negative and you just hook them up to these pins so positive goes here this goes back to ground and this is the audio out and this is the audio in so you could maybe hook up a microphone jack to the positive and negative of the audio in and you could do the same with a speaker and hook it up to the audio out that's the essence of what this kit is and what the preamplifier circuit does is it takes a microphone signal and amplifies it just enough so that when you further put it into a more powerful amplifier you get bas