Here's an interesting find - well, to me, anyway: #2052 does not have a
little red button on the main dial so that it can be slid back & forth for
calibration. In fact, the manual says:
"The dial scale is marked in 10 KC divisions and is adjustable for
calibration purposes by sliding left or right with a slight pressure on the
front of the glass."
IIRC, other versions I've owned that were no doubt manufactured later
had a red button mounted on the front of the glass. Here's a photo from
Wikipedia that shows it:
_http://upload.wikimedia.org/wikipedia/commons/b/b5/Drake2b.png_
(http://upload.wikimedia.org/wikipedia/commons/b/b5/Drake2b.png)
So, I wonder when it was added? I don't remember if my original
1963-purchased version had the button or not.
I love counting rivets........ :-)
73/Arf,
Paul, K4MSG
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