where can I get sample 555 timer chips or something like them?
Pay a visit to eBay. At any given point in time there are 3 to 10 auctions
running with lots of 10 to 25 or more pieces of all version of 555 for
prices between $5 and $15 and shipping between $1.50 and $5.
555 timers are likely the single easiest part to procure that's out there.
--
Dmitri Abaimov, RCDD
http://www.cabling-design.com
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