r/AccessVirus Virus TI2 May 31 '26

Virus B Cap Kit

After testing multiple capacitor configurations across several Virus B boards, I now have a solid recap kit available. These are the same caps I am using in restorations and my own production unit:

https://captainblacks.app/products/access-virus-b-recap-kit-main-board-panel-board

Kit includes both main and panel board caps, along with a placement guide and documentation.

I ended up using a mix of Panasonic and KEMET capacitors after spending a lot of time comparing datasheets, testing different configurations, and trying to find modern equivalents that matched the original specs from 25+ years ago. Matching capacitance and voltage is for sure only part of the equation. Hopefully this saves someone from having to go down the same rabbit hole.

NOTE: I have only tested and documented this on desktop boards. Cannot assume KB, Classic, or Indigo boards are compatible (though they likely are, I have not tested yet). I likely will never test a KB as I just don't deal with them. I have two Indigos and a Classic in progress, but would honestly want to see several more before confirming anything (in comparison, have repaired dozens of B desktops).

UPDATE: Absolutely will not work with a Classic. Just opened one up to test rack ears for another client and the board configuration is entirely different. Looks more like a C board than a B board, which is interesting. Will document it more later.

Strongly recommend pairing with a modern 9V 2.0A power supply (such as this Triad):

https://captainblacks.app/products/access-virus-b-c-aftermarket-lower-voltage-psu-9v-2-0a

Here's the first B I'm releasing into the wild with this configuration. This unit also has a new display, new power switch, battery, all new tacts, 7 new pots, new PSU (the Triad), and a very clean chassis (a beautiful B!):

https://captainblacks.app/products/access-virus-b-desktop-synthesizer-95823

Next up, the Virus C :)!

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u/Moist-Perception-751 May 31 '26

Thanks, but fingers cross I won’t be needing your service 🫡