[AMRadio] Re: Boatanchor in Salem


Bry Carling bcarling at cfl.rr.com
Sun Jul 22 12:14:35 EDT 2007


QST published a number of articles showing a pair of 813 tubes
used as a 1KW input RF final, if I am not mistaken.

> Well fellows,
> 
> If the shack wasn't crowded.......... it's worth the trip from Springfield,
> OR to Salem for a lookie-see. $500 couldn't buy the iron if its in good
> shape. The pic on QTH, fronts not bad and I'm a sucker for black wrinkle
> paint/rack-n-panel stuff.
> 
> Although the advertised 750 watts might be stretching things a little. My
> old handbook from 1960 sez 813's are worth 300 watts each used in class C
> plate modulation. The 811A's; a pair class B push/pull will last a long time
> at 250 watts, ala Junkston 500's and globking 500's. Max is about 340 watts
> for a pair of 811A's.
> 
> Good iron will make this a 24/7 500 watt rig. Minus;  no exciter, gotta add
> maybe a Johnson Ranger. So here it is a full legal limit 1500 PEP output
> boatanchor, keep the fingers crossed the iron is gud. Just add elbow grease.
> 
> 73's
> wd8kdg
> Craig
> 
> 
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