Quote:
Originally Posted by timmy
With all the 7jp4 tubes out there with good emissions but a dark picture due to bad phosphors but no way to get inside to fix such a simple problem, It's like so close but yet so far. So if we use a 7jp1 and the pic is green and we take clear red cellophane and now the pic is black & white, because I've done it already but it becomes dark, but is b&w.
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The filter color you need is purple. I have done what you are doing and made a 7JP1 look B&W but it was only viewable in a dimly lit room. Lighting gel for stage use is what you need to find, usually about $6 per 20X24 inch sheet. I used a
piece of Roscolux #359: Medium Violet. Hope this is if some help to you.