13 Dollars for an electronic switch ??
Tony Clark
clark at andrews.edu
Wed Aug 13 17:02:24 CEST 1997
> I don't understand the adversity towards a good old relay. Most people
> view relays in the same bucket as inductors
> and vaccuum tubes, but with "today's technology", you can get DPDT or
> 4PDT relays the size of 18 pin DIPS that
> use gold over palladium contacts, can be driven DIRECTLY from HC
> logic, and cost about $3.00. See the offerings
> from Omron, Aromat, and NEC. Oh, and 0.025 ohms max on resistance,
> -120dB SNR, 35 volts pk-pk signals.
Sure, this is a valid way to go. I played with a 4PDT once when I was
prototyping a product a while back, but determined that size was a major
factor in not using it. That and the price on them jumped from $7.00 a
piece to $16! I forget now who manufactured it.
Really, though, I wonder where he's getting his DG201's from? I can
get them for $3 to $5. Even better than the DG201 is the DG444 (I just
checked the specs). I have a few of these that I have been playing with
(the DG444 that is) and they work very well. These go for $2.05, so in
my opinion, this is a much better solution.
Hope this helps.
Tony
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I can't drive (my Moog) 55!
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Tony Clark -- clark at andrews.edu
http://aupe.phys.andrews.edu/~clark
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