[Milsurplus] T-47/ART-13 into 50 ohm load

[Meir WF2U]

Thanks Dennis,

I'll try your settings tonight prior to checking in to the Old Military
Radio Net tonight.

Meir WF2U
Landrum, SC

-----Original Message-----
From: mac [mailto:w7qho at aol.com] 
Sent: Sunday, March 24, 2013 2:48 PM
To: Meir WF2U
Cc: WA5CAB at cs.com; milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] T-47/ART-13 into 50 ohm load

Meir,

OK, you're running a high C tank configuration here.  With control "C"  
on 7 the big tapped coil (L113) is completely shorted out and all your  
inductance is coming from the variometer (control D).

I have been operating on 75M with "C" set at 5 and  400pf shunt  
capacity across the output as I mentioned before.  Arrived at the  
latter value some years ago via "cut and try."  Checked today and  
found that with "C" set on 5, 400, 200 and even 100pf shunt capacity  
all give me the same 100 watts out into a 50 ohm dummy load with only  
minimal changes in the settings of "D" and "E" with the 813 maybe  
running a little more efficiently with the higher value shunt cap. "D"  
set round 45 and "E" at 190 through all of this.

Maybe time to revisit some stuff...  :^)

Dennis D.  W7QHO
Glendale, CA

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