Working on something new for the diyAudio Store today. No, it isn’t a DEF. Close cousin-ish. 🙂

Aw, what the heck.  Here’s the SIT version.  M1 is a depletion part, or even an N-SIT.  The Sony parts are low mu, so negative gain here, but that can be handled on the front end much like a tube OTL.  🙂