[Boatanchors] TX4C problem

[Richard Knoppow]

On 3/1/2015 8:33 AM, Bill Abate wrote:
> Bill,
>
> My T-4XC needed a 6EJ7.  After an alignment I got 150 to 165 watts 
> into a dummy load measured with my Bird wattmeter on all bands. That 
> 6EJ7 made a big difference.  Not sure why yours is so low but the 
> finals seem to be a good candidate.  Also I found a NOS tube did not 
> help the problem when it should have.  When all else fails don't rely 
> on a single tube sub.  Check RF voltage at the 6JB6's grid on each band.
>
> 73,
>
> Bill, K3PGB
>
        A moment please, is the power above CW?   This is OK for CW 
where there is higher screen voltage on the finals and no ALC.   My T4XB 
will make about 160 Watts on CW on 80,40,20 meters when the tubes are 
fresh.  In TUNE the limit is around 130 Watts as established by the ALC.

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL