[Antennas] coil wiper

[Chris BONDE]

I saw one antenna that had a semi-circle groove in the body of the sleeve, in this 
groove was a stainless steel spring, round part in the groove, length around the 
circumference, the coil was inserted into the body and the spring contacted the 
outside of the coil or the wires thereof.  Seemed to work a lot better than 
fingerstock.

Chris opr VE7HCB

> I suspect they'll work OK, but I would be concerned with the graphite
> dust shedding onto the coil over time, but maybe this is not a
> problem..
> 
> I guess you know that most folks use "fingerstock", and that there is
> at least one mfr which uses something else (that is nameless) that
> they claim is much better than fingerstock.
> 
> just my 2c,... not very helpful...
> 
> 
> David
> 
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