Vintage IBM 63.5w Power Supply for IBM 5150 PCs For Sale
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Vintage IBM 63.5w Power Supply for IBM 5150 PCs:
$50.00
Vintage IBM 63.5w Power Supply for IBM 5150 PCs Up for sale is a vintage IBM 63.5w power supply for the original IBM 5150 PC. It is clean inside and out, and has been tested several times for several hours on a 12mhz XT motherboard, with an assortment of cards, along with an MFM harddrive plugged in and booting and running fine.The power supply fan is so quiet you won\'t even know it\'s running, other than the smooth flow of air through the rear vents. The rocker switch has a strong, firm feel in turning the power supply on and off. There are only two power connectors for drives. During that era of the IBM 5150, 5.25\" full-height 360kb floppy drives were the standard issue. As an aftermarket, a 5.25\" full-height 10mb harddrive was made available, but the wattage requirements of such a drive ran the possibility of maxing out the 63.5w power supply, but also depended upon whatever cards/boards were plugged into the ISA slots.As harddrives improved, and as 5.25\" half-height and 3.5\" drives were introduced with much reduced wattage requirements, it became feasible to run such drives and have plenty of wattage left over for other drives (eg, floppy, tape), cards and boards. Both power cables are the same length and should reach drives in both bays fine. However, there are scenarios where a \"Y\" cable might be required. For the harddrive, it should always be directly attached to one of the two power cables, for the benefit of maximum draw without interference from another drive. If two 5.25\" half-height floppy drives are adjoined in the other bay, or a 5.25\" half-height floppy drive and a tape backup drive, then those two drives should share the \"Y\" power cable.At the rear of the power supply is an outlet, which was typically used for plugging low-wattage monochrome monitors into, so that when the PC was turned on, the monitor would be turned on as well. This may be acceptable for CGA monitors, as well, but probably not for the wattage requirements of EGA and VGA monitors, nor even today\'s flat screens. However, an external modem may be low-wattage enough, or possibly an external CD player. But the point is, DO NOT overload the 63.5w power supply with anything external before covering the needs of all the internal components.Note: Screws are included for securing the power supply to the computer case, if you need them.Note: If reaching towards the rear right of the PC in order to turn the power supply on/off is difficult, use either a power strip or a power center in which the power supply is plugged into. The power supply\'s rocker switch would then be left \"on\", but the PC controlled by the power strip or center.This power supply is being offered in \"as is\" condition.Please email me for any other questions or considerations. Thank you.
