[Elecraft] Q7 base resistance test - low reading

Rich Lentz ke0Zx at cox.net
Sun Jan 30 14:26:54 EST 2005


Try taking off the heat sink, i.e. unmount the transistor, and then measure
the resistance again.  This will determine if the mounting has introduced
the short.  DO NOT USE THE STAR WASHERS. One of the options indicates this
but it is not in the manual yet.  I had the same problem and found a VERY
SMALL piece of metal on the insulator, needed a magnifying glass to see it.
After removing this small piece of metal all was fine. I guess this is why
they now recommend not using the star washers. 

Rich,
KE0X



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