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source for blue filters for 2465 family scopes ??
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bob
anyone know of a source for the blue crt filters that slid in front of the actual CRT ?
-bob
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Jean-Paul
Bob
Search the exact part number on epay, ask Walter at Spehere Research in CA and Qservice in Greece. As a kluge I have used a theatrical lighting gel, available in 2' square sheets in a huge selection of colors. You could cut dozens from one sheet. Finally a local plastic firm like TAP Plastics may have colored acrylic sheet, the thickness is the problem. Bon chance, Jon
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I bought some gel online. It arrived wrapped in brown paper, and so
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wrinkled that I couldn't use it. I could only find clear plastic thin enough to use. The thinnest blue was over twice the specified thickness. I have thought about putting together something to ct a notch along the edges to make them the right thickness, but they wanted to sell me a 4' by 8' sheet of plastic. I also considered gel between two pieces of crystal clear page protectors, like people are using to make face shields.
On Fri, Oct 30, 2020 at 4:00 AM Jean-Paul <jonpaul@ix.netcom.com> wrote:
Bob
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Christian
I have a pile of misc scope filters - what's the exact PN you're looking for?
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bob
EUREKA !!!
I found a source of film/plastic that almost completely imitates the original color film, and its CHEEEP !! 1 sheet thick seems to mimic the color of the factory quite closely, and if you like a darker blue color, put a second layer in. https://www.amazon.com/gp/product/B008AXZ9M8/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&;psc=1 works GREAT !!! -bob
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Chuck Harris
Bear in mind that the blue does nothing to improve the
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contrast of the beam on P31 phosphors. It was chosen entirely for esthetic reasons. It matched the tektronix blue color used as a corporate color scheme. -Chuck Harris bob wrote:
EUREKA !!!
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ekirkellis@...
I have a 2445 that I have parted out. It uses the same filter. I can send you the one I have for $10 plus postage.
Thanks Kirk Ellis Pikeville NC
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mosaicmerc
I used to make these, I have a couple around.
No Charge...once I get it to the post office... Ancel
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