drannala@neuro.usc.edu (Diane R Annala) (08/29/88)
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I am a graduate student interested in designing and building my own electonic
equipment to support my Ph.D. dissertation project in neuroscience. I would
appreciate receiving any advice, suggestions, instructions, and/or hardcopy
designs for building any of the following devices:
-- low noise, high gain, high impedance metal microelectrode amplifier
for recording from various microelectrodes (polymer coated stainless
steel 50um exposed tip for multiple unit studies, tungsten in glass
microelectrodes w/ 10 Mohms impedance at 1000 Hz 10 nA for single
unit studies, and traditional KCl filled glass microelectrodes for
intracellular recording, and bipolar wire electrodes for EMG studies)
-- voltage to audio fm recording converters for storing data on mag tape
-- high speed analog to digital conversion circuits for IBM PC's
-- adjustable (or programmable) analog or digital filtering circuits
capable of high pass, low pass, band pass from 30 Hz to 10 KHz ..
60 Hz notch filter circuits.
-- neurological stimulators and stimulus isolation units generating
the usual neurological spike trains.
?? are there particular devices (eg. instrumentation op amps) I should
examine as candidates for the active devices in my circuits. Or am
I better off using FET front ends and 741's as the heart of my work.
I know this is a broad shopping list ... but my personal budget is low and
I'd like to get the best possible equipment by investing my own time building
the necessary devices. In addition, I'd like to learn as much as possible
about how such equipment is designed and built.
Thanks, D R Annala
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