https://www.diyaudio.com/community/threads/lazy-singing-bush.388164/
I forgot how long I have these pcbs; heck, even added (just for giggles) one small cap, just to have a reason to make new gerbers :clown:
Anyway, N-MOS/Schaded N-MOS/SIT source follower, loaded with P-MOS in Mu-Follower arrangement, blatant shameless flipped Xerox of Papa's BAF 2015 amp Mu part
Mosfets are IXYS hockey pucks
SIT can be THF51, 2SK180, 2SK182
Single rail supply, GND up, neg 60Vdc down (remember that GND is State of Mind - I did use +/-30Vdc PSU from my T-Bed 2 accordingly wired, without using center rail)
Iq 3A2