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Phil,
When I purchased my CTC-5 Wingate, many years ago, the previous owner had already had the 21AXP22A tube replaced w/a 21FB22. RCA provided a conversion kit that allowed for the installation with a retaining ring that attached directly to the rear of the mask. No struts required and plenty of clearance room for the anode lead. I don't recall ever seeing another kit like this in other sets.
-Steve D.
Last edited by Steve D.; 02-01-2017 at 03:52 PM.
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