Ultralinear "1/2 Blackface" Mod Kit 1/2 Blackface Ultralinear Kit:70W UL Models If you order a Jupiter

If you order a Jupiter or Orange drop signal cap upgrade along with this kit

and the bias board overhaul

PREMIUM OVERHAUL KITS INCLUDE PARTS & INSTRUCTIONS FOR:

Sexy Vibrato mod (slows vibrato and reduces 'tick')

Ultralinear "1/2 Blackface" Mod Kit 1/2 Blackface Ultralinear Kit:70W UL Models If you order a JupiterThis is a great mod for those dreaded ultralinear Fender amps of the late 70s. All 135W & 70W silverface Fender amps are ultralinear, and quite different from their blackface & earlier silverface relatives. They are known for sounding colder and harder. Different transformers & power supplies make these amps impossible to truly blackface, but it is possible to get them to sound better and have a softer feel! These kits are easy to install and improve