Re: Power Supplies going up in smoke (non filtered)
Which makes the case for an overvoltage protection circuit in most equipment locations. Had someone at Astron not thought to include the supplied over voltage crowbar circuit on/in all their regular fixed station supplies... I'm pretty sure they'd be long out of business. Even the early problematic crowbar circuit was much better than "no crowbar protection" and the damage stories we'd be reading about would be many... s. > "Jeff DePolo" <[EMAIL PROTECTED]> wrote: > FWIW, my only bad experience with a switching supply was a Samlex (I > think the model was 1212 or something like that; it was rated for > 12A). > Anyway, it had been working fine for several years powering a rack > of about 8 rMicor eceivers, a voter, and a 5-watt link transmitter. > I had to move the cabinet to a different location at the site, and > after I did, when I plugged the supply back in, a few seconds later > I noticed smoke coming out of the voter. Oh boy! I had damage to > 4 receivers and the voter. A post-mortem on the bench later that > night revealed that the power supply was putting out about 32V. > --- Jeff >
