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Optalix Red Switch Purpose
Charlie: I got my wife to examine the Optalix and she pointed out that I thought the switch moved between "C" (at top of slider) and "R" (at bottom of slide); but she corrected me -- it is really "C" and "A".
The "A" I pointed out earlier from the inside images, is not an earphone jack -- it is a power jack. I found an earphone jack just under the strap's mounting pin.
So, she thinks "A" on the switch stands for Auxiliary, as in external power source, and the "C" on the switch is for running it off its batteries. The fact it is a red switch makes it likely it is power related, too, I think.
She was 13 when she got it and never hooked it up to "A" -- "I always walked around with it up to my ear tuned to Radio Luxembourg."
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