Hi, Yes, ATX computer power supplies are great and easy to get free. I scavenged a few that we were throwing out at work (Rosewell RD600N-2DB-SL-BK). It provides 12V with a max current of 44A. I use the PS to power my Yeasu FT-891 HF SSB transceiver when I bring it home from the boat. And with a couple cheap AliExpress DC-DC buck and boost converters, I use it as an Adjustable PS from 1.2V to 60V .
Also, for low power needs (12V, 1A) I use an old wall wart power adapter. I cut off the DC plug end and soldered on pins to plugging into solder less breadboards. It is not only free, but you get to use one of the items in the junk draw. Paul - Paul E. 1981 C&C Landfall 38 S/V Johanna Rose Fort Walton Beach, FL http://svjohannarose.blogspot.com/ > On Dec 6, 2021, at 5:41 PM, schiller via CnC-List <[email protected]> > wrote: > > Dennis, > > I scavenged a power supply from an old desktop computer. Well controlled 5V > and +/-12V. The one that I scavenged was a 300W supply. I use it to run my > Garmin Chartplotter during the off season to download trip data. Computer > power supplies are incredibly cheap and the power quality is well regulated. > > Neil Schiller > 1983 C&C 35-3, #028, "Grace" > Whitehall, Michigan > > On 12/6/2021 3:39 PM, Dennis C. via CnC-List wrote: >> Over the years, I've found a need for 12 volt power. For instance, if I >> wanted to test a marine GPS or VHF. My answer is usually to attach wires >> with alligators clips to the battery in my truck or to a 12 volt jump >> starter. This is less than ideal.. >> >> I know there are inexpensive 120 VAC/12 volt power supplies out there. I >> see them on eBay, Amazon, etc. Many are just a box with no 120 VAC wire and >> plug. Like this: >> >> https://www.mouser.com/ProductDetail/MEAN-WELL/RS-15-12?qs=ql1K%252BkDau3qz9%252BonMzIW2g%3D%3D&mgh=1 >> >> <https://www.mouser.com/ProductDetail/MEAN-WELL/RS-15-12?qs=ql1K%252BkDau3qz9%252BonMzIW2g%3D%3D&mgh=1> >> >> Ideally, I would like one that already has the 120 VAC cord and has a >> terminal strip to insert the stripped power wires of the device I'm testing. >> Can some of you hobbyists point me towards an inexpensive but decent power >> supply? It need not be powerful. 10 watts would probably suffice. >> >> -- >> Dennis C. >> Touche' 35-1 #83 >> Mandeville, LA
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