[ARC5] [Milsurplus] SCR-183 / SCR-283 Info

[arc5 at ix.netcom.com]

----- Original Message ----- 
From: "Joe Munson" <prc74b at fuse.net>
Subject: Re: [Milsurplus] SCR-183 / SCR-283 Info


> We have a local AM net at 12 noon on Sunday's here in the Cincinnati,
> Northern Kentucky area. For the past two Sundays, I have used the BC 
> 220/230
> combo on the net with great results.  Every body talked about the great
> sounding audio.  I was loading it intto a 250 foot flattop, center loaded
> with open wire line.  I used a balanced tuner, and added around 3-400 pf 
> of
> cap across the antenna post.  Was copied in Richmond, Ky, about 100 or so
> miles South here, also up East, and into Northern Ohio, and Indiana....

On my set, for 75 meters,  I put a 75 pFd, 1000V NPO cap in
series with the antenna lead.  I mounted it inside the plug-in coil set.
The set now tunes-up to full output right into a 50-Ohm dummy load.
Higher voltage would be better, but this works fine.
With the large cap to ground, I'd worry about circulating losses,
but then "whatever works" :).
I haven't found the best value for 40 yet, but it's going to
be somewhere around 50 pFd.

73 Dave S.