Support and General Use > Recording
Dynamic microphone preamp DIY?
gnu:
Since line-in works on my nano, but mic input does not, I need a cheap, small preamp that brings my mic to line-level. I don't want to buy anything, but I got lot's of old devices with almost any type of transistor, resistor etc.
I searched the web, but I couldn't find a working (simple) one anywhere. Can you provide me with a plan for a preamp? I doesn't need to have good quality or be stereo.
Any suggestions?
saratoga:
I've built a few of these for lab projects. Generally a pair of 741s or better opamps in series does the trick. INA122 or similar if you don't mind spending 2-3 bucks extra. Not sure if this is ideal, but I've had good results.
You're not going to be able to build one of these with salvaged parts though.
gnu:
Ah crap..
OK, I'll have to buy some opamps...
gnu:
I looked through all my salvaged parts and I found a tl082 opamp - now I only need a simple preamp...
BenJenkins:
I don't know what kind of parts you have sitting around, but here is a recycled preamp. http://sneaktime.net/2007/03/13/homemade-preamp
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