I built the Korg. If you really like microphonics this is for you. Tried 3 different Korg tubes and they were all noisy. Put it on a shelf and moved on. It's not a tough build though and the instructions are very clear like the other DIYAudio projects I have done.
Look into this one instead:
https://diyaudiostore.com/collections/printed-circuit-boards/products/mezmerize-b1-buffer
There are also some nice kits over at Glassware Audio. I purchased one of the tube buffers. With these you really need to be more hands on and know what you are doing.
The pot in the box is easy (active is no longer available). We have plenty of the Noble attenuators that Roger preferred, both continuous and stepped. They are 100k log.
Look into this one instead:
https://diyaudiostore.com/collections/printed-circuit-boards/products/mezmerize-b1-buffer
There are also some nice kits over at Glassware Audio. I purchased one of the tube buffers. With these you really need to be more hands on and know what you are doing.
The pot in the box is easy (active is no longer available). We have plenty of the Noble attenuators that Roger preferred, both continuous and stepped. They are 100k log.