Woody update but no fix I also have a Pyramid PS-15KX which I occasionally use but mostly run my 900GTO on battery. Schematic located at http://www.repeater-builder.com/pyramid/pdfs/PS15K.pdf Removed

Here you go: https://groups.yahoo.com/neo/groups/ap-gto/conversations/topics/58920 -Ray Gralak Author of APCC (Astro-Physics Command Center):

Pyramid has always made great stuff but like all electronicproduct companies, they buy most of their electronic components fromdistributors and there has been a big and growing bigger problem over the

I'll report on-list what I find out. -Christopher Erickson Observatoryengineer Summit Kinetics Waikoloa, HI 96738 www.summitkinetics.com

Steve, Yes Iagree. The reason I bought this one was because I already had one thatworks great -- and it's still working great. But this one was "bad" out ofthe box. Unfortunately, I only

Same here. Been using them in my observatory for years without problems. Roland

I’ve been using Pyramid 12 amp PS and they have always worked great. Not saying there couldn’t be a problem but just a data point. One on the mount and one on the dew heaters. -Steve

OK,OK. You've shamed me into getting to the bottom of my PS problem. Inthe interest of "science" and helping others, I'll ship the thing to Christopherin Hawaii and see what he can learn. Woody

Jimmy, It's aPyramid Model: PS-15KX. You guys (particularly Roland) have shamed me into figuring out what the problemis. So in the interest of "science" and hopefully helping others,

There probably isn't a perfect solution out there. Only buying quality, brand name equipment helps. As would having a good multimeter in your kit and knowing how to use it. There are 12V gfci devices

Woody I see you still have 13.8 volts between the positive and negative terminals. Shorted cap, possibly May be same cap your friend replaced. Positive terminal shorted to -11 Volts below protective

Chris, Of course, you are correct – manufacturers would rathersave $2 and leave the risk to “probability and statistics”. I was just wondering what WE can do – invest in some kind of

Woody, what if I paid YOU to ship me that powersupply? If there is a potential problem with newer Pyramid powersupplies because they are cutting back on QC costs or something, a lot of peoplecould

Every additional component adds cost and manufacturers have toweigh costs against pricing, competition, sales and profits. Having a ground fault in Pyramid power supplies should bea rather rare

It might however shed some light on problems that others are having. We have one person who wiped out two laptops, might be the same issue. Rolando

Christopher, Thanksand I can tell you're dying to diagnose and fix this thing. But it's justnot worth it. It'smuch heavier and larger than similar switching power supplies and I nolonger value

I knew there was a discussion, but a search of the forum for "5.10.02" yielded and "driver" yielded nothing recent. Thanks.

Sounds like there is a short in the power supply electronicsto the frame ground. Could be a wiring problem, a circuit board problem, atransistor insulator problem or a screw fastener problem

USPS Flat Rate Priority Shipping goes to all 50 states and upto 50 lbs for the same low price. A large Flat Rate box (free at the Post Office) would costabout $15 to ship to Hawaii. If you really

Hi, Given that this power supply has happened to at least acouple of members, I wonder if there is a GFI (Ground Fault Interrupter) switchthat could be put on the mains supply – or a different