[Amps] Re: insulation

[R.Measures]

>
>Dear John, (and friends),
>
>Tomorrow, an older gentleman who runs a small motor-rewinding business in 
>East Rutherford is allowing me to come by the shop in the morning where he 
>and I will fabricate a plate choke on round stock, capable of handling the 
>four amperes at 4KV the new amplifier requires.
>
>When approached, the shopowner was all too enthusiastic, saying how he did 
>this sort of thing 50 years ago for amateur operators, but that
>equipment builders were becoming a rare breed.
>
>When telling him about the 1.25" Teflon round stock we'll be working with, 
>he said to not worry if we screw it up because he has all sorts of 
>insulating materials for coil forms left over from years ago.  He also 
>said that he has stocks of coil-type wire in all sorts of gauges, and 
>"special stuff with green insulation that has silver in it for real high 
>voltage."

•  Cu wire with green insulation is not nearly as RF-tolerant as modern 
Type-WL high-temp, silicone-varnish wire that is now in use for rewinding 
electric motors.  
>
>>From the last set of posts about superior insulating materials I will find 
out 
>>what kind of items there are, make a list and post it herein.
>
>Thank you all for an informative discussion, once again, and right at the 
>time when it was most pertinent!
>
>Hal Mandel
>KA1XO
>