DIY Audio Projects Photo Gallery
 NEW    Bruce Heran outlines the details and construction of his simple DIY 6DJ8 (ECC88) Tube Hi-Fi Headphone Amplifier Project.

DIY Audio Projects Photo Gallery


[ Gallery Home | Upload Photo | Recent Uploads | Most Viewed | Search ]

Click to view full size image

Low noise mic preamp

After preforming an on street recording of a classical busker with my Cowon mp3 in Florence I decided I wanted to do more recording. The Sony ECM-MS957 stereo mic (not made any more) had too low output to drive my mp3 player line-in or laptop digitizer so I made this low noise, two stage transistor (BC549) preamp (red lid). Because I used large 10uf polypropylene capacitors to ensure high quality sound recordings the preamp, though portable with internal batteries (12V), is quite large. Now I can use my mp3 player (128kps) to make quality recordings anywhere. There is no hiss or processing noise at all. The preamp is dead quiet. The preamp from the ESP site and is extremely easy to build. I use silver wire and silver solder throughout and gold connectors where possible. You can use 10uF electrolytic capacitors where I used polies but for the very best sound use the polyester capacitors. The designer suggests this in his text.

K-12-Tube-Amp-Kit-with-Enclosure.jpg DIY-HiVi-Home-Theatre-Speakers.jpg The_SetUp.JPG TDA2003-Chip-Amplifier-Visaton-FRS-8-M-Sphere-Speakers.jpg Hiraga-Super-Class-A-Amplifier.jpg
File information
Filename:The_SetUp.JPG
Album name:Solid State Audio Projects
Filesize:405 KiB
Date added:Jun 18, 2008
Dimensions:1024 x 768 pixels
Displayed:5362 times
URL:http://diyaudioprojects.com/Gallery/displayimage.php?pid=182
Favorites:Add to Favorites

DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Opamp Projects :: DIY Phono Projects :: DIY Cable Projects :: HI-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy