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Old 13th Sep 2017, 4:19 am   #5
Argus25
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Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,679
Default Re: Cossor 54 4TP substitution

Andy, That is a very good idea, well done. And it has reminded me of a project.

I have been thinking of something similar for a replacement for an electrostatic TV CRT. In the future, unless new ones can be made, they will all fail. I was looking at some modern compact 5 inch monochrome electromagnetic deflected CRT's that are much shorter than electrostatic tubes, that are still plentiful in a range of sizes and realized they could, with added electronics, be fitted to a housing the same outer shape as the electrostatic tube and be made from the outside at least to replicate the behavior of the electrostatic CRT, pin for pin. The heater connections for the most part could be used to power the internal electronics. I was going to have a go at replicating a tube like a 5AP4 or 5BP4 initially, its on the to do list!
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