[Johnson] More Valiant Progress

[Kim Herron]

Hi again John,


>   On most of the other bands, the transmitter is putting around 80 - 120 
> watts of unmodulated carrier into my dummy load.  However the grid drive 
> current is way too low - around 2 - 5 mils, instead of 8 where it should 
> be.  With the drive on 8 mA, the plate current is in the "buy a new set 
> of final tubes" range.

         Ok, before you condemn the tubes, get out the REALLY accurate ohm 
meter and check your metering resistors.  I've never fouind any in either
a Valiant or Ranger that were right.  If those resistors are off, your 
current readings will be off and you'll condemn tubes that are just 
fine.  You also load the rig
either too light or heavy depending on which way the resistors have moved 
and again, you get screwed up.  Oh, BTW, some of these resistors are NICHROME
wire, which make them look like a jumper on the terminal strip where they 
are mounted. PITA!


Thanks!!

Kim Herron  W8ZV
1-616-677-3706
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