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| Thread ID: 102474 | 2009-08-20 06:36:00 | bench power supply | toonttm (14853) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 802866 | 2009-08-21 06:02:00 | Decibel's websites would seem to provide most of the info you need. This site gives all the data on the LM723 if you decide to go that way. pdf1.alldatasheet.com I'd have thought though if you want power supplies that only deliver the current of a LM723, ie 150mA max, then using a PSU from a PC is somewhat of overkill to say the least. Dick Smith is now worse than useless for componentry, but I see Jaycar stock LM723, LM317T, LM338K etc, also small transformers if needed. Edit: I do DSE a slight injustice, I see they stock LM317T at$2.98 ea (I hate that sort of pricing), a bit cheaper than Jaycar My preference would be to use a LM317T three terminal, minimum number of components required (and a year ago or so you could have picked them up for $1 each at DSE on clearance :) ) |
Terry Porritt (14) | ||
| 802867 | 2009-08-21 10:21:00 | Hey cool, thanks for that! I did find a few kits from both Jaycar and Surplustronics which I think will do what I want - will try them at $9.50 each with all components and nice, small printed circuit board. Just thought I could grab a DC supply from an old ATX or similar as they have a transformer, rectifier, overload protection, regulated voltage levels (great big fat capacitors) etc and can be bought for like a $1! lol (I remember paying many thousands for an ATX in the day - makes you cry when you think how much our quad core computers are gonna be worth in 5 years!) - what 4Gb ram! Windows 73.7 needs at least 1Tb to run! haha, i remember buying a 4Gb HDD drive in 1995? [166Mhz CPU - rocket ship then] It was called 'bigfoot' and was advertised as more storage than you can ever use - my $30? flash drive on my keyring is 4Gb...hahah?? |
toonttm (14853) | ||
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