According to the video on the HP 1200W G6 HOT-PLUG POWER SUPPLY. The fan is very loud on it when it is on for over an hour with a load on it. Might consider it but have to reasearch this. But defiantly going to purchase one of the power supplies in the above .
Here's a link to a set of postings about power supply conversions that are "well known"; I used this to guide my initial experiments: https://www.rcgroups.com/forums/showthread.php?1292514-How-to-convert-Server-Power-Supplies
Cool , you need a crowbar circuit in there if something fails it will send all that AC voltage into the radio...TOAST Ive converted many computer supplies for ham shack accessories over the years
Good to know. What place do you purchase your crowbar circuits and resistors from? Thought I had some unable to locate them. So decided to purchase instead. Thanks
I used a potentiometer to set the output voltage. You adjust it until you find the level at which the over-voltage protection shuts the supply down, dial it back a little, then remove and reapply AC to reset it.
I want to thank you guys for these videos and ideas you present here. I have been electronics for forty years. Although I have been in and around electronic apparatuses for that long I have been a ham for five years. I'm learning about the hobby. I have thought about buying one the switching power supplies I have seen in several videos. I also have utilized a couple of old computer power supplies for different things. I didn't realize that one could pick up a server power supply this cheaply. I just bought a pair of HP switchers that I can combine to obtain 76 amps for twenty dollars. I know that this is old hat for you guys that have been the hobby for a long time. Us OLD newer hams and young new hams appreciate the heads up for these type of ideas, Thanks!
Been using one of these for the better part of 10 years. Recently hooked up the O-Scope to see which PS provides cleaner power -- this one or the DM-30T. Surprisingly, the Dell PS is cleaner than the HAM radio purpose-built PS. I have it mounted under my desk in a homebrew caddy so I can slide it in and out without disconnecting anything. I never modified mine to go any higher than the 12.3V, and I do see a performance difference between that and the DM-30T when on high power, but I only have it hooked up to the VHF/UHF rig at the moment, which doesn't seem to be affected.
It looks as though this specific supply is fairly easy to adjust to 13.8V https://translate.google.com/translate?sl=auto&tl=en&u=https://on5vl.org/alimentation-petit-prix/
If drawing close to maximum current from the supply on a 120 VAC circuit, it would be advisable to use a 16 AWG IEC power cord rather than using a computer power cord that usually only has 18 AWG conductors.
I wonder what the difference is between the HSTNS-PL18 and the PD18 and if I can mod the PD18 as well?
Here's a couple of articles of interest, from AD5X: http://www.ad5x.com/images/Articles/Vprotect.pdf http://www.ad5x.com/images/Articles/Condx817RevA.pdf
Good Lord almighty... Let's shut down the whole 12.2, 13.5, 13.8 debate and concerns about "exact voltages" right now by saying this: If you knew what voltage ranges were being provided to your mobile radios by your vehicles, you'd blow a gasket in an epic way. RADIOS WERE BUILT TO OPERATE OVER A REASONABLE RANGE OF INPUT VOLTAGES. 13.8 is a "nominal" voltage, most radios can probably operate without any issue on 11-16 volts. What is the error factor on the device you're using to measure the voltage, for that matter? Thank you and have a nice day. Chris/AJM
