"gareth" wrote in message
...
"Mantrid" wrote in message
...
"Mantrid" wrote in message
...
"gareth" wrote in message
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I wonder if anyone can offer a picture of the variable selectivity
arrangement of
the Eddystone EA12, which I believe was also used by some other
manufacturers?
This was the scheme whereby coupling between the primary and secondary
of IF
transformers was varied nechanically by distancing the two halves of
the transformer
from each other.
I have access to photos showing the operating levers, but what
interests me for
the moment is to have a peek, or peeks, inside the IF cans themselves.
You might find something here.
www.eddystoneusergroup.org.uk
Number 15 "Inductor lore"
I should have said, Restoration Projects, then Number 15

Well done, that man!

Actually, "No5 Crystal filters and receiver selectivity" has the desired
photo.

Many thanks.

.... AND ... a very good explanation of the Eddystone dial, to boot!