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
________________________________________________ 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/
