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Description: I wonder if the PSU pictured might be suitable for running an A1200 from (The FDD power connector is just soldered on for testing purposes)? Or at least as an auxiliary PSU for some power hungry drives, perhaps? Manufacturer: Elco (Japan) Outputs: 56W Max 5v 0.3~3A -12v 0.3A +12v 1.2A Compared to a Standard A1200 PSU P/N 391029-02 Outputs: 25W 5v 3.0A 12v 0.5A -12v 0.1A Hmmm...I wonder... Picture Stats: Views: 1545 Filesize: 110.49kB Height: 768 Width: 1024 Posted by: Hodgkinson at May 05, 2007, 10:02:08 PM Image Linking Codes
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| Hodgkinson Posts:1080 | December 01, 2007, 05:51:20 PM True. That was just a suggestion... AAMOF my A1200 has just started cutting out on me when I turn all the peripherals (Powered from the A1200) on. Sounds like im going to have to hook up a PC PSU to it. I'd like to build a pure linear PSU (Less RF noise...) for the Amiga, but at the moment the time required to do that simply doesn't justify the gain. |
| rkauer Posts:3263 | December 01, 2007, 04:23:51 AM Mixing two +5V rails is no good to the regulators itselfs. Use an AT or ATX PSU intead! |
| Hodgkinson Posts:1080 | May 08, 2007, 04:18:02 PM Now theoretically it may be possible to regulate some of the 12v rail down to 5v, then combine this "derived" +5v supply to the existing PSU +5v supply with some low ohm, high power resistors - A common trick with paralleling up output transistors in PSU's in order to increase current handling. Not sure how this would affect the PSU operation/startup though (Some PSU's need loads on the +5v rails before they will run without continually resetting themselves - Such as one in a network hub I repaired). Diodes could be used to isolate the two supplies (Maybe even germanium types) but the volts drop generated could cause problems. Just an idea. Might be easier just to use a AT or ATX standard PSU... Hodgkinson. |
| adonay Posts:1144 
| May 07, 2007, 12:05:00 AM seems it has alot of 12volt power but lack 5v (mA) good for 1200 with internal drives but not much for the 5v rails |
| Piru Posts:6946 | May 06, 2007, 05:43:30 PM Well, it depends on what you want to run with it. Obviously stock A1200 should work just fine. |
| Hodgkinson Posts:1080 | May 06, 2007, 10:48:08 AM Btw, PSU in photo model number = PMC30U-1 Hodgkinson. |