[Milsurplus] RE: GB> ART-13

[jcoward5452 at aol.com]

What you fail to mention is the fabled "Kryptonite Core" in the 
modulation transformer.
But isn't the txformer core of the same material as is used in 
"saturable reactors" as used in power supplies to aid in regulation at 
high current loads? Or have I just blown my cover?
 JC


-----Original Message-----
From: w7qho <w7qho at aol.com>
To: Hue Miller <kargo_cult at msn.com>; milsurplus at mailman.qth.net; 
glowbugs at pioba
 ire.mines.uidaho.edu
Sent: Tue, 25 Nov 2008 1:10 pm
Subject: Re: [Milsurplus] RE: GB> ART-13



On Nov 25, 2008, at 12:52:58 PM, "Hue Miller" <kargo_cult at msn.com> 
wrote:

What B+ are people using on the 813 ? I think the original 
dyno supply was 1100v, which is a bit on the low side for
an 813, but possibly the modulation transformer will not 
stand a higher power level ?  -Hue Miller 
Originally 1150V. (750 at high altitudes) but hams regularly run these 
sets at 1500-1600 volts (and higher) and get away with it.  One 
limitation is the zero biased 811s in the modulator and the audio drive 
available from the speech amp.  The mod xformer in the ART-13 will 
handle remarkable power levels considering it's small size.





--

Dennis D.  W7QHO
Glendale, CA








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