Quote:
Originally Posted by allan
See what you think re the results I obtained.
Allan
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If the osc coil really did contain resistance wire as a means of damping it may have been Constantan wire which is very easy to solder to. It came in enameled and cotton covered variants , very popular as resistance wire in Europe, but nearly unheard of in the USA. It has a near zero temperature coefficient.
Most specialist resistance wire companies in the USA though, used nichrome, it came in both enameled and cotton covered variants too, the difference being it is phenomenally difficult to solder to and practically always needs to be crimped.
So if you study the way the wires are terminated to the tags, soldered vs crimped, its usually easy to work out of it was constantan or nichrome wire.