Carl WA1KPD wrote:

Help, I have an old model of the Signal Shifter with 3 plug in coils. I am
looking for any information on the coils for 160. In particular I need
number of windings, taps etc. I would also be very happy to buy a set of
them if you have them in the junque box

Do you have the other sets of coils? I have the Meissner instruction
manual from 1943 that covers al ot of different projects including
the signal shifter. I can make copies of it for you. However, it does
not include coil winding data. Heh, apparently they want you to buy
thier coils instead of making your own.

That being said, the 160 meter range coils are from 1.600 to 1.870 KHz
and are resonanted with two variable capacitors. Neither of which have
a posted value either.

Hopefully, you have a setof exsisting coils and reverse engineer from
there with the turns ratio and total number of turns.

Jeff


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