[Heath] heathkit parts

[G3OOU at aol.com]

Hi Neil
 
I have only had problems with the centre part with the spiral  groove 
cracking and on a really bad one the cracks extending to the outer  ring with the 
0-100 calibrations. All the rest of the parts have been  fine. 
 
An NCR router or milling machine would be another alternative for  
manufacture?
 
73

Bob

Bob F Burns
C Eng,  FIET, MSE
Amateur Radio Callsign: G3OOU
Registered RSGB  Instructor
G-QRP Member No: 6907; Zone: 14, QRA: IO91WH; WAB:  TQ25
Secretary of Crystal Palace Radio & Electronics Club: _www.g3oou.co.uk_ 
(http://www.g3oou.co.uk/) 
Technical web site: _www.qsl.net/g3oou_ (http://www.qsl.net/g3oou) 
Follow G3OOU as  @BobFBurns on Twitter _Http://twitter.com/BobFBurns_ 
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