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This page describes a mic pre I made some years ago. Since the main chip used has been obsolete for
many years, it's not really a good DIY project... I made it for recording some music at the local music school. A couple of days before the recording was to be made, I discovered that the mic pre in the tape deck there didn't work very well (unless perhaps as a noise source). So I had to come up with something quick.
Since I was in a hurry, I drew the PCBs by hand and etched them in ferric cloride. The pen I used to draw the traces wasn't very good, so the traces are full of small holes... I didn't spend too much time on the front panel, which can be seen in the picture on the right :) Some pictures of the amp can be seen below. The schematics are also available, in case somebody who has some SSM2015 chips reads this...
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Comments? Questions? Just send me an e-mail! Mail: mcs@post5.tele.dk |