The real "Gaincard" parts

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Many have seen those pictures which purportedly show the insides of the real(original) Gaincard. They are some funky looking parts. Not particularly impressive looking. Which leads me to my story. I spent the other morning going to a electronic supply store in order to build the inverted version of the gainclone. On a total whim, I ducked into a thrift store and found an early eightes technics tuner/receiver made in japan. It was metal and heavy and had a killer heatsink and ei transformer. It was $10 so I bought it basically to use the heatsink and maybe possibly the transformer. Well turns out, that the amp is littered with exactly, and I mean exactly, the same resistor used in the gaincard for the feedback loop. So, I quickly locate 2 22k resistors and desolder them. Well, gentlemen when I installed them in my nigc the thing took off! A perfect match! Long and short of it is I strongly believe that those parts in the original, are tremendously synergistic for the circuit. I've tried alot of different parts in the amps. I think the 47labs guy has a few tricks up his sleeve.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.