On 2/12/07, Bob M. <[EMAIL PROTECTED]> wrote: > Someone else mentioned that 25A is the limit for > continuous use. Yup, I'm not disagreeing. However it > should be capable of that load for hours at a time.
We run a mixture of Astron supplies and the stock GE supplies, and almost all of them are running about 50% load... we put the big GE supply on a single repeater and our PA's are never run at full rated output. One of the Astron supplies is the monster 75A (?) model with metering and has been running now continuously (other than a lighting strike many years ago, and power outages and/or maintenance where we choose to turn it off) for close to ten years. That Astron has something blown in the DC Voltmeter, and the Voltmeter is pegged all the time, but it continues to run... and we check voltage with our own DVM's. We've seen no reason to go through the headache of un-racking it to fix the metering circuit, and the ammeter (the one we're usually more interested in anyway -- shows if the usual current draw is happening when we arrive on-site to do work, since we note it in the site notebook) works fine. Beef up. It'll help the stuff last longer. Just like many PA varieties... a 100W PA run at 80W will (generally depending on design) last a very long time. Current in-rush when things first key up and heat both are power supply killers... find supplies that can LOAF at even the worst you can throw at them, and you'll be happier. They'll last seemingly forever. (And now, I'm SURE I've jinxed us... and a PS will blow somewhere, soon. LOL!) Nate WY0X
