Wednesday 29 April 2020

Ibanez ST-9 Super Tube Screamer w. Aion "Cirrus mod"

Unverified
One of the better TS variants according most TS lovers. Original had a 20kC dual gang pot for the Mid Boost control and since these are nearly impossible to source this layout has Mid Boost section modified (lifted from Aion Electronics Cirrus project) to use a 100kC dual gang pot which is readily avaiable. 
But if you happen to sit on a 20kC dual gang pot you can swap both 7,5 resistors to 1,5k, 5,6nF cap to 27nF and 12nF cap to 68nF.

More information including schematic HERE


8 comments:

  1. The link of the information doesn't work.

    I'm sorry to ask here, but I have a question: how I can see if the older layout are suddenly verified without to check them out one by one occasionally?

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    1. Working on it but the backlog is quite big so it might take a couple of days until all layouts is tagged.

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    2. Ok, I meant if a July 2019 layout is suddenly verified, is there a way to know it, without look every layout if still unverified or suddenly verified? I'm sorry, maybe I wasn't so clear.

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    3. Nah, it's ok, I've planned to add the tags for a long time but your question finally made me bit the bullet;-).

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    4. BTW, which layout did you have in mind? It is possible that me or an online friend verified it.

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    5. None one layout in particular, just I'd like to know if some is verified, so I can add in my collection in case I want to build it one day. ;-)

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  2. Hi There, I would like to build this, can you fix the link to the info and schematic? thanks in advance for all the work you do here!

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  3. Here: https://aionfx.com/app/files/docs/cirrus_legacy_documentation.pdf

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