Twentieth Anniversary Mac - Bose AMP Board - Recap List

[daanvdl]

Hi everyone,

I recently recapped the Bose Amplifier Board (inside the subwoofer) 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!

Used parts based on availablity:
# Part
2x EEU-FM1E101H
1x EEU-FC1C221
1x EEU-FC1E222S
2x 860020672005
5x EEA-GA1C220B
2x EEA-GA1C470B
25x EEA-GA1C100B

 

[daanvdl]

To prevent potential issues like the infamous "TAM Bose Buzz" in the future, I used the following high-quality connectors:

• Molex 171813-1012 – KK 396 Series, 12-pin, gold-plated male header
• Molex 171813-0003 – KK 396 Series, 3-pin, gold-plated male header

Both are part of the KK 396 family (3.96 mm pitch) and ensure reliable, long-term connectivity.

 

[Byrd]

This is gold, thanks for posting it up. In your travels where we’re most of the leaking/marginal caps in your TAM? I’ve a beloved unit yet to go there however it’s never shown weakness - yet

 

[mac27]

Thanks for sharing this. Having the list of parts available is great. I had mine done about a year ago and have been enjoying the fruits of a buzz-free TAM ever since. None of the caps anywhere seemed problematic or marginal, but also did a full recap of the entire system.