Jul - The R-390A Frequently Asked Questions Page
Jul - The R-390A Frequently Asked Questions Page
Jul - The R-390A Frequently Asked Questions Page
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pete KH6GRT<br />
From drewmaster813@hotmail.com Fri <strong>Jul</strong> 5 17:21:55 2002<br />
Subject: [R-390] More specific than R-390 digest, Vol 1 #273 - 16 msgs<br />
Dear Radio Rodentia:<br />
Well, I'm pleased to hear that you have decided to "Barry" the hatchet. Hopefully that SP-600<br />
(hereafter phoneticized "S**T PEE six hundred") belongs to Barry(III). After you guys have defiled the<br />
fine Hammarlund sufficiently (making its power supply "soiled state"), maybe Barry(III)(tm) won't like<br />
the endpoints (if you catch my "drift") and give the receiver a new "endpoint" in our Hallowed Landfill.<br />
<strong>The</strong>n I can retrieve it and start the cycle all over again. Drew P.S: Hammarlund<br />
From martin.benoit@sympatico.ca Sat <strong>Jul</strong> 6 00:50:52 2002<br />
Subject: [R-390] Help parts C225<br />
I am in trouble with my R<strong>390A</strong> Motorola. I need the antenna trim capacitor (C225) on the RF<br />
subchassis. Ready to pay. Martin VA2ZO Tnx and best 73!<br />
From ba.williams@charter.net Sun <strong>Jul</strong> 7 01:02:03 2002<br />
Subject: [R-390] To those on the list....<br />
I had a bad crash with Outlook Express this morning while retrieving email. I think the crash corrupted<br />
my database file of email. I'm running a backup from late May, so I've lost about 7 weeks of messages.<br />
<strong>The</strong> db file is 111 megabytes, so it is unwieldly in some repair programs.<br />
I know that I needed to respond to a few members on various topics. I'll try to patch or work around the<br />
corrupted file, but it is looking pretty difficult at the moment. If you wrote and are waiting on a reply,<br />
maybe you could resend the last message to me.<br />
<strong>The</strong> Motorola PH-56 is running fine, despite Chuck's dour comments. (g) Barry Williams<br />
HAMMARLUND<br />
From theprof@texoma.net Sun <strong>Jul</strong> 7 05:09:24 2002<br />
Subject: [R-390] Balun for balanced antenna connector<br />
It seems to me that a balun on the balanced antenna connector would be a better way to feed the R-390<br />
and still get the benefit of the extra stage in the RF deck. Being a frugal type (cheap) I decided to<br />
kludge something together.<br />
I removed the 75 ohm to 300 ohm balun from one of the "transformers" that come with most VCRs (a 1"<br />
x 1/2" x 1/2" with an F-connector and two screws). I figure 300 ohm to 75 ohm should be close enough<br />
for government work. Rather nicely built.<br />
I used an Amphenol 82-5589 twinax connector. I sawed the threads from the RG-58 UG-175/U reducer<br />
used for PL-259 connectors. I soldered this into the back side of the twinax connector. I was able to fit<br />
the balun into the connector and ran RG-58 to the antenna switch box.<br />
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