Anyone out there into collecting old scopes and engine analyzers and WHY? I recently bought a 40's/50's era Weidenhoff portable engine analyzer (it's the size of a medium suitcase )for cheap at an auction , and as I was cleaning out the tool tray on the top of it I came across some repair tags for it . They were RCAF tags dated 1951 and 1955.I also came across the original warranty card that was never filled out and sent away .Here's a link to a page that has one like mine except mine has a green background around the gauges with a black case.

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