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475A filter, protective cap availability?
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Got a nice working 475A, would like to replace the original blue/green CRT
filter with a nice sharp new one. Ar they commonly available? Also needs the protective cap that fits over the face of the scope - what do these go for, and are there any better sources for them? Thanks Tim N5IIT Washington Council Ernst & Young ________________________________________________________________________ The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Notice required by law: This e-mail may constitute an advertisement or solicitation under U.S. law, if its primary purpose is to advertise or promote a commercial product or service. You may choose not to receive advertising and promotional messages from Ernst & Young LLP (except for Ernst & Young Online and the ey.com website, which track e-mail preferences through a separate process) at this e-mail address by forwarding this message to no-more-mail@.... If you do so, the sender of this message will be notified promptly, and messages designated as advertising or promotional will be automatically blocked once necessary modifications to our e-mail system have been completed. Our principal postal address is 5 Times Square, New York, NY 10036.Thank you. Ernst & Young LLP |
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I think i might have mentioned before on this list, an item that works well for a screen filter is lighting gel material. You can pick the color....use one that is close to the color of the trace. A musical intrument repair shop should possibly have some. The only to be careful of is not too get one that is too opaque. Then you would have to turn up intensity farther than needed to view the trace. I have used gel material on several scopes now and works well. It isnt just for looks either...the reason it is there is to provide a higher contrast trace. vs seeing a white background.
Maybe someone else might know of where you could get a cover. Mark Anton, Owner Heights TV & VCR Service 3946 Central Ave. NE Columbia Heights MN, 55421 Phone is 763-789-1767 (area code formerly 612) ----Original Message Follows---- From: timothy.urban@... To: <TekScopes@...> Subject: [TekScopes] 475A filter, protective cap availability? Date: Wed, 3 Mar 2004 08:21:34 -0500 Got a nice working 475A, would like to replace the original blue/green CRT filter with a nice sharp new one. Ar they commonly available? Also need the protective cap that fits over the face of the scope - what do these go for, and are there any better sources for them? Thanks Tim N5IIT _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar ? get it now! |
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Hello Mark,
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You did mention that lighting gel before, but I still do not understand what is that material and why musical instrument repair shops would have it. I presume, the material is a gel with dye, deposited on transparent film, something to be used to make custom photographic filters. The film must be very thin, to avoid optical distortions due wavy surface caused by mounting. In that case, how you would make a 4 x 6" screen without film collapsing? Please, explain the construction. Regards Miroslav Pokorni ----- Original Message -----
From: "Mark Anton" <heightstv@...> To: <TekScopes@...> Sent: Thursday, March 04, 2004 5:29 PM Subject: RE: [TekScopes] 475A filter, protective cap availability? well for a screen filter is lighting gel material. You can pick thecolor....use one that is close to the color of the trace. A musical intrument repairthere is to provide a higher contrast trace. vs seeing a white background. |
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Robert Morein
Lighting gels are not very thin, because they are mounted in front of
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lights, not lenses. The dye is "cast" into the material. ----- Original Message -----
From: "Miroslav Pokorni" <mpokorni2000@...> To: <TekScopes@...>; "Mark Anton" <heightstv@...> Sent: Friday, March 05, 2004 3:07 AM Subject: Re: [TekScopes] 475A filter, protective cap availability? Hello Mark,what is that material and why musical instrument repair shops would have it.mounting. In that case, how you would make a 4 x 6" screen without film collapsing?repair getshop should possibly have some. The only to be careful of is not too fartherone that is too opaque. Then you would have to turn up intensity scopesthan needed to view the trace. I have used gel material on several CRTnow and works well. It isnt just for looks either...the reason it isthereis to provide a higher contrast trace. vs seeing a white background. filter with a nice sharp new one. Ar they commonly available? |
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