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some questions about old crt camera view finders Answered

I acquired a pair old crt camera view finders from an electronics surplus store, but before i go hog wild with my soldering iron i have a couple questions. how many amps dose one of these things usually draw? will goofman's mini tv instructable work with any crt or do some crt's not work?

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NachoMahma (author)2008-09-12

. Locate the part number on the CRT and search for a data sheet. It will tell you voltage/current/&c.; Compare specs to CRT in goofman's circuit.

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