I think there's some confusion on
ebay and other places what a "Fresnel" lens is.
Fresnel lens - Wikipedia, the free encyclopedia
I always thought it was the flat screen in front than the 3 lens (at least the 2 I scrapped last winter had 3 each) that look more like a concave magnifying lens. So, I didn't market them on ebay as "Frensel" lens. Maybe my loss.
The Mitsubishi RP tv I scrapped had the 3M Precision Optics Delta 78 lens and that set went for $10.50 on ebay. This tv also had nice cast Al "holding brackets" for the lens. The other Asian name (can't remember) had the Delta 77 lens they only went for $1.99 for the 3 lens set. I still have the colored plastic covers to all 6 of these lens.
So, my RP tvs lens ave. a little over $2 a piece on ebay. Still better than throwing them away. No yokes that I recall but no big tube to get rid of either. The Mitsubishi was pressed wood framed and was easier to bust up with the back of an ax than the other one that was a large single piece plastic covering in back. Something to do on a cold winter's night...
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