68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
Twentieth Anniversary Mac PSU Recap List
Posted by: daanvdl on 2025-05-09 04:44:22
Hi everyone,

I recently recapped the power supply of my Twentieth Anniversary Macintosh (TAM), and I wanted to share the capacitor list in case it helps others working on the same project. I've attached an image showing both the capacitor locations on the PCB and a complete parts list with specs.

Hopefully, this makes the job a bit easier for fellow TAM owners. Feel free to share any feedback or additions!
Good luck with your restoration!

Mouser cart

Used parts based on availablity:
x2 LGR2D471MELZ40
x1 UVY1H2R2MDD
x2 ESH105M050AC3AA
x3 ESW476M025AC3AA
x1 ULD1V101MPD
x1 EEU-FM1E101H
x1 UPM1H470MED1TD
x1 UPM1H100MDD1TA
x2 UHV1C222MHD
x2 UVZ1C102MPD1TD
x2 EEU-FR1V471
Posted by: Durosity on 2025-05-09 05:00:59
Oh perfect.. I’ve been meaning to do this for both of my TAMs! Did you also do the main machine?
Posted by: daanvdl on 2025-05-09 05:02:26
Yes, will add this info lateron (Bose board / Powerboard / Logicboard)
Posted by: finkmac on 2025-05-09 05:36:40
would be good to include the original capacitor part numbers
1