Vox Top Boost preamp... Mud problem

[pompeiisneaks]

http://www.geofex.com/Article_Folders/m ... tfolly.htm

one of the regular forum contributors R.G. wrote the above and shows you can drop a mosfet in place for a cathode follower, no changes needed.

~Phil

[ChopSauce]

I did that with an IRF820 - upon someone else's design/advice/...

z4.jpg

The MOSFET was successfully used to drive the tone stack - yet that latter & the rest of the circuit might be far from optimal.

I could read (*) that IRF8xx and LND150 were not that much interchangeable but I don't really caught the nuances.
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https://www.freestompboxes.org/viewtopi ... =2&t=31268