Fender Blues Junior Jr. Tube Board PCB (Custom Replacement) Models:MK1 Through MK4 (Cream Phenolic With Green Mask)

Fender Blues Junior Jr. Tube Board PCB (Custom Replacement) Models:MK1 Through MK4 (Cream Phenolic With Green Mask)These are exact drop in replacements for Fender Blues Jr Guitar amps. To the best of my understanding, there are only two versions. Green FR4 board Blues Jr's have pilot light wiring, noise reduction resistors and load stabilization diodes on the board. Cream colored phenolic boards with green solder mask do not. All current boards made after 2001 are cream colored boards and anything before is a green board. Please don't ask me to figure out what

The color and lumen output is exactly the same as the originals

eats tubes

Included in this kit are 4 power amplifier transistors and two preamp boards that replace the originals

All sliders are new

They sound exactly like the originals and have been updated with several fail safe features

They consume lower current than the originals too

this is for you

install a barrel jack or jumper

Hacks and 3rd party mods make synths very difficult to service if you ever run into a problem

All VCF / VCA ICs (Chips) have been replaced

MKS-30 and GR-700 chip replacements for Roland 80017A VCF/VCA ICs

or Roland MKS-7