Robert,I have always used a Variac for AC powered equipment which I have. The
Dim Bulb Current Limiting Power Supply is an interesting concept but would not
a DC Power Supply with current limiting work? The Dim Bulb . . . . is only $15
on Amazon, but I can't get it until tomorrow evening. Unfortunately, I am
staying in a motel on TX36 Friday night, so I won't have it in time even for
Saturday. DO YOU HAVE ONE THAT YOU CAN LEND TO THE CAUSE?
I presume that you are setting up today. I'll be there for 3 or 4 hours
beginning around 9:30 or 10 this morning. Then home around 1 or 2 for the
final pack up and load out.
IZO
On Wednesday, March 1, 2023 at 09:48:06 PM CST, Robert Polinski via BVARC
<bvarc@bvarc.org> wrote:
The table should be equipped with a dim bulb current limiter power supply.
Plugging in equipment that is old and has not been used in a long time can
result in shorted power supply caps. These can result in them blowing up or
fire emitting from them and dangerous fumes. If you plug it into a dim bulb
supply, if the bulb glows bright, something shorted. This can save a power
supply transformer, or a rectifier tube, which may be hard to find for an old
radio. Always warn people, plugging in old equipment that had not been fired up
in several years can result in expensive damage if the caps are bad, Robert
From: BVARC <bvarc-boun...@bvarc.org> On Behalf Of John Chauvin via BVARC
Sent: Wednesday, March 01, 2023 8:13 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB <bvarc@bvarc.org>
Cc: John Chauvin <k5...@yahoo.com>
Subject: [BVARC] Here is a relaxing, fun, educational, highly beneficial and
"good for you and ham radio" way to spend an hour or two at the Hamfest
In order to provide attendees the opportunity to see if the used equipment that
they are about to purchase is working, BVARC provides a service at the
Equipment Check Table to do basic tests on the equipment. This is not a
verification that the equipment fully performs properly, but should give the
buyer a better feeling for the status of what he is purchasing. We say "We
test it to 3db above DOA" - Hi, Hi.
We won't make Go-NoGo decisions for the buyer, but this testing often results
in his feeling better or tells him that maybe he should pass. As a staff
member of the Check Team, you do not need to have 25 years experience working
in an electronics test lab. A little knowledge of basic electronics would
help. For example, if we are testing a transceiver, we might measure the
output level, via an HF power meter into a dummy load on a few bands. We would
check the receiver to see if it hears anything. We would test this for CW and
apparent SSB operation. Distortion, stability, harmonic content, sensitivity,
etc. are far beyond what we will do.
To participate for an hour or two, go to the following link to sign up for the
1 hour time slot(s) still available. Saturday has one slot remaining; Friday
still needs quite a few.
http://www.tinyurl.com/GHHF2023ECSignUp
We hope that you will join us. Regardless, signed up or not, do stop by and
see what we do.
Tnx es 73
de John, K5IZO
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Publicly available archives are available here:
https://www.mail-archive.com/bvarc@bvarc.org/
________________________________________________
Brazos Valley Amateur Radio Club
BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here:
https://www.mail-archive.com/bvarc@bvarc.org/
