Kaypro Meanwell Power Supply and/or Mount
This is a 3D printed mount that adapts the stock power supply screw holes to a Meanwell RT-65B replacement power supply. The Meanwell supply just snaps in without the need of screws, but a couple of screw holes are provided for the bottom holes in the Meanwell (type M3 6mm screws) if you want it to be extra secure. The Kaypro power supplies are heavy in electrolytic and RIFA capacitors and is therefore very unreliable. The Meanwell RT-65B is a direct replacement providing modern reliability. It will also fix the screen contraction issue on disk access. Rewiring the power lines is a relatively minor task (instructions included with this mount). Tools required are wire cutters (scissors would due) and a screwdriver.
Optionally, you can order this with the Meanwell RT-65B supply included. Or the Meanwell RT-65B is readily available on Amazon, Digikey, Mouser, etc. We suggest you avoid cheap knock-offs found on eBay as their reliability is not certain and the failure modes may be catastrophic to your Kaypro.
If you prefer to print the mount yourself, as a service to the vintage computing community, we offer the STL file for free on request here: Link.
Print settings are pretty generic. You may have to use a skirt to promote bed adhesion and avoid warping since the base is large and flat. PLA or PETG are the recommended materials for this mount. Use supports for the two overhangs where the clips for the Meanwell supply are.
This mount is copyrighted by Bonus Life Computers, please preserve labeling and do not redistribute the file online without permission. Thank you.
All of our systems are graded based on cosmetic condition, relative to how they came from the factory. Pluses and minuses may be assigned when a system is slightly better or slightly worse than the three grades we offer.
The grades are as follows:
Grade 1: System is as new, with no more than one or two minor blemishes in places not visible when placed in the traditional position a desk. Yellowing must be non-existent or barely observable. Cases have no cracks, no nicks, and no deep scratches. All chips are original or OEM replacements. System will be fully operational. For software, all manuals and disks are present and the case has very little sign of age, wear, or use.
Grade 2: System is very presentable, with few blemishes in areas visible when placed in the traditional position a desk. There may be some level of yellowing but not to the extreme. Cases have no cracks. Cases may have some minor scuffs or light scratches in visible areas. Cases may have nicks or dents in places not apparent when looking at the unit from the traditional operating position. White keys may have some yellowing. Chips may be original, OEM replacements, or third-party reproductions (ex: ArmSID or SwinSID replacements for SID chips). System will perform all key functions normally, except where third party reproduction chips may alter functionality slightly (for example replacement SID chips may sound slightly different than original chips). For software, check the item description to determine if manuals and disks are included. The packaging will be very nice, with some signs of age (rubbed spots, slight creases or tears, some fading).
Grade 3: System may have cracks on the case, significant blemishes in visible areas, missing trim pieces that do not affect proper operation, or significant yellowing. White keys are probably fairly yellow. These systems are discounted significantly and intended for people who want a system but don't care that it doesn't look great on a desk, or would like to do a more extreme restoration on their own (ex: painting cases). Chips may be original, OEM replacements, or third-party reproductions (ex: ArmSID or SwinSID replacements for SID chips). System will be fully operational, except where third party reproduction chips may alter functionality slightly. For software, check the item description to determine if manuals and disks are included. The packaging will have significant signs of age or abuse (many rubbed spots, creases, tears, or heavy fading).
NOTE: If you order a Condition 3 unit, please keep an eye out for an email from us confirming that you intended to do that. We won't ship until you confirm you wanted a Condition 3 and it wasn't just a mistake of picking the lowest cost option in the store! Hope you understand.
Ungraded: Non-working parts machines, non-working components, or items that obviously can't be graded (such as cables or disks).