From: jiva_at_humboldt1.com
Date: 2001-06-17 18:30:53
thanx for the update/research. Have just been trying to
ask questions that seem to need to be asked, hope they're
not irritating.
> > http://www.grass-
> telefactor.com/Catalog/electrodes/elecmetalsurf.html
> > >
> > > Unfortunately I think you have to call to get prices.
> >
> > Are those shielded conductors or is that issue out of the
> > picture now?
>
> This posting should be viewed as a sort of progress report. As far
> as I'm concerned, nothing is "out of the picture"--I just haven't
> located any fully shielded electrodes. However, on the Grass
> electrodes the conductors are not shielded. They come in whatever
> lengths you want from 1 foot to at least 4 ft, and end in shielded
> plugs that can either be attached to the equipment or to a shielded
> cable. Nicolet Instrument Co. sells a very similar product that I
> personally don't like as well because the conducters are a bit
larger
> in diameter and stiffer, and the attackment to the electrode is
> covered with a shaft of plastic that seems womewhat awkward. I did
> find an old note from a purchase I made of Nicolet electrodes 2 or 3
> years ago. The price then was $70 for 10 electrodes.
>
> BTW, according to the Grass literature, Ag-AgCl electrodes are
> supposed to be the best for picking up low-freq signals. I presume
> that wold include the EEG range.
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