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Old October 5th 13, 03:03 PM posted to rec.radio.amateur.boatanchors,uk.radio.amateur
Mantrid Mantrid is offline
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First recorded activity by RadioBanter: Oct 2013
Posts: 2
Default Variable selectivity?

"Mantrid" wrote in message
...
"gareth" wrote in message
...
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

J
--
"How we have advanced, thanks to the Machine!" said Vashti.

"The Machine Stops" - 1909