[AMRadio] W9INN antenna & Central Electronics 20A

[jcandela at prodigy.net]

Jeff,

    My "Stealth" antenna is down right now. I want to 
put up a shortened 80 meter dipole (maybe 60' long), 
such as a W9INN. Anybody use one? It would fit in my 
lot without a big visual signiture. I do not need much 
bandwidth.
    I have been tinkering away restoring, and 
modifying a Central electronics 20A which I plan to 
use as an all mode exciter. Between broken circuits, 
mis-wired circuits, out of tolerance parts, etc. and 
out of date technology, I have under taken a large 
task. It required no less then fixing 5 items to make 
the balanced modulator stable. 

    I found a way to keep it from going from AM to DSB 
Reduced Carrier on voice peaks. When that happens, the 
signal really sounds lousy on a AM detector. I am 
still perfecting that. Can run 3 watts out now on AM, 
and modulate upward ~ 150% while still sounding good 
in my monitor (AR-88).
    Currently I am fighting the SB suppression when 
switching between upper, and lower SB. I can 
compromise the settings for ~ 40 db suppression, or 
optimize one SB only for maybe ~ 55 db suppression. 
Looks like a lot of work to get both side bands right. 
Anybody play with this? CE uses 1N34A's (X4) in the 
balanced modulator. Anybody know of something more 
modern, maybe hot carrier diodes (4) in a single 
package? Sorry for mentioning SSB on a AM forum. I am 
however intending to run AM primarily, and Hi-Fi SSB 
when necessary.

    I have a linear (Gonset GSB201)but it is GG, and 
requires ~ 70 watts pep input for full output. I am 
thinking of using a "one lunger" 811 GG mounted in a 
arc-5 chassis to fill the gap from my 20a output (15-
20 watts pep)to ~ maybe 100 watts pep. I have a "near 
perfect" 80 meter arc-5 that I hate to tear up. Anyone 
got a beat up one lying around? Need chassis, covers, 
and no tubes, or roller inductor.

Regards,
Jim
Wd5JKO 
--- Original Message ---
From: "Jeff/W5OMR" <w5omr at yahoo.com>
To: <amradio at mailman.qth.net>
Subject: Re: [AMRadio] Info regarding John, W5MEU

>When do we get to hear WD5JKO on the air again, Jim?
> 
>:     Jeff,
>: