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Author Message   Waynemel Tinkerer Username: Waynemel Post Number: 139 Registered: 08-2009 Rating: N/A Votes: 0 Posted on Sunday, August 22, 2010 - 08:49 pm:    I would like to build a simple shutter speed testor similar to others that have been mentioned on this forum. I am having difficulty sourcing a photo transistor. All reference numbers seem to be European designations and not easily cross referenced here in Canada. I can order the item from Digikey in the US, but a $20 shipping charge on a 75 cent item seems just plain wrong. For that money I could buy a completed unit off of that auction site thing (the name eludes me at the moment...E something?) Anyway, can anyone help?