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Hi there! I just came across this instructable and think this is exactly what I'm looking for. I'm amplifying the sound of a very large and heavy rock wobbling on a stone tile. The sound this produces without any amplification is already quite loud. At the moment I'm trying to figure out what kind of preamp I'll need. Can someone tell me how to choose the right preamp for the kind of sound I'm amplifying?Thanks in advance!Regards,Dave
I seen computer builds with mineral oil. Does it make any different using mineral oil than just regular cooking oil?
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