[AMPS] Zener screen supplies

[measures]

>Message text written by measures
>
>>The Eimac outline drawing for the 4cx250B shows a much longer leakage
>path.<
>
>The Eimac outline drawing (Page 8 of data sheet no 4009 dated 9-1-79) for
>the 4CX250B/FG does not enumerate this dimension and in any event is rather
>oversize. Measurement of an actual 4CX250B shows that the insulator surface
>path is just under 7mm long, as opposed to slightly over 10mm on the
>drawing.     
>
€  By subtracting, the length of the anode insulator may be arrived at.  

>> I have never experienced an external arc,  John.<
>
>Can you be sure of that? If so, please explain how.   

€  No crispy-crittered cockroaches visable in socket.  No arc-marks on 
ceramic.   
>
>>"A few mm" appears to be off by a factor of c. 9. < 
>
>With hindsight, I accept that 7mm is not perhaps best described as "a few
>mm". However, I do not see that it is "...off by a factor of 9". 
>
good point,  John

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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