Typical NOS sag. 5Y3WGTB TAD Selected can replace any 5Y3GT. It has that typical "sag" like a NOS 5Y3 due to its voltage drop when pushed, causing a somewhat reduced output power and lower volume. Replacement for 5Z2P CALIFORNIA PROPOSITION 65 WARNING WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
1979 Fender Champ Amp By Steven E Woods from Astatula, FL Friday, September 4, 2020 Verified Buyer My Champ has always sounded like crap. It just sat in a closet all these years because it was worthless. I recently dug it out and replace the speaker. That was an improvement but still not enough. So I tried Stewmacs 3 tube set for Fender Champs. Oh Man! This Champ really IS a Champ now!!!
TAD replacement tube By Rick Godin from Athol, MA Wednesday, May 20, 2020 Verified Buyer This replacement tube is working excellent I'm very happy they were more than glad to replace the tube that I received which was faulty I would recommend stewmac to anyone who wants good quality parts