Re: Rejuvenating Magic eye Valves?
Yesterday, I got out my unrestored R1155 and gave it some attention. I finally got round to trying the heat treatment on its magic eye. I propped it up in the oven and gave it half an hour at 220C, then let it cool slowly with the oven fan running and the door open. The only noticeable effects on the valve were that some old varnish on the top edge of the bulb went dark brown and the base went a little bubbly and wrinkly. Tried it in the set and...little or no change at all, comparing before and after photos with the same exposure settings. At least it didn't get worse! Maybe the treatment needs longer, or a different temperature, or maybe the microwave version would work.
Chris
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