jantypas@hope.UUCP (John Antypas) (03/22/88)
A question for the net experts in this sort of thing? We find
ourselves in need a mixer for audio recording. Nothing fancy, but
nothing standard either. We could go to a certain retail electronics
store and pay their "You can't go anywhere else" prices, but why?
Therefore, I (not an engineer) am writing to the experts for their
wisdom on this subject.
I may be wrong, but I figure that a 6 in/2 out (3 stereo/1 out) mixer
can't be that difficult (in theory) to build. Is it? What would we
need in terms of basic parts? (Obviously we would need 6 pots, 14 .25" jacks),
What about the problem of signal degradation? How do we overcome the problem
of squeezing six inputs into two?
Now let's get fancy. What would it take to add reverb? Is this even
feasable?
If anyone has any answers/schematics they'd like to provide, we'd be
very grateful.
Many thanks.
John Antypas
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John Antypas -- Soft21 --21st Century Software:
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Internet: jantypas%soft21.UUCP@{eddie.MIT.EDU, UCSD.EDU, uunet.UU.NET}dje@datacube.UUCP (03/25/88)
I built a sound mixer 11 years ago. Two phono sources, two line sources, a Mic., Cueing. It used BiFet op-amps (TL084), audio taper potentiometers, a tone circuit borrowed from the National Audio Handbook, two great phono preamps borrowed from the now defunct Advent Reciever (I made PC boards for these), an op-amp mike preamp, a couple of radio shack LED V-U meters, a box, power supply, and about 50-70 hours. As a new grad with time and no money, it was fun. But I wouldn't repeat the process today seeing some of the low cost mixers available. Dave Erickson ---------------------------------------------- ------ Datacube Inc. / /| 4 Dearborn Rd. ------ | Peabody, Ma 01960 || \| | ihnp4!datacube!dje || /|/ Human:(617)535-6644 ------ Fax: (617)535-5643