QM-1

[Domenic M. Mallozzi]

Hi
 
Terry Perdue in 2001 had posted that his coil was marked as  follows:
L=250 uH
Ce=96 pf(mmf)
Q=110
 
Everyones coil will be a bit different as I remember
 
Typical Q standards are built and than measured by a calibration lab. The  
cal lab than states the typical parameters L, Q and resonating  capacitance. 
 
I previously worked doing this at a cal lab and can tell you that a  properly 
built Q Standard like the Boonton, and HP units are very stable  over time. I 
cant comment on the Heath ones as I have never seen one. My Q meter  came 
without one but I checked it with a Boonton standard.
 
Just a note connect the Q standard directly to the Q meter terminals,  DO NOT 
USE test leads, no matter how short, the Q and probably the resonating  
capacitance will be off.
 
regards

Dom
N1DM
 
 



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