Fixing A Fender Champ Amp | The Metal work
Amp builders call the next bit 'populating the board', which basically means installing the components. So long as you carefully follow the layout diagram and measure all the components using a multimeter before you solder them in place, you shouldn't go wrong. Wherever you see a little arrow protruding from the board on the layout diagram, this tells you to connect to ground (ie the chassis). You can make this easier if you leave the tails of the various resistors long where needed, rather than snipping them off, and solder them onto the old ground wires. I did have to make a couple of notches in the new fibreboard to clear a couple of protruding transformer bolts, but the fixing screw holes lined up perfectly. Referring back to my letter codes I simply reconnected all the hook-up wires.
The next stage involves making the new connections for the vibrato circuit. Again, follow the layout diagram and check everything carefully. I found it helpful to use the same colour wires that Fender indicates in the diagram. Double check and triple check all your connections before reinstalling the chassis, fitting the valves and reconnecting the speaker. If you've done everything right you should be the proud owner of a blackface Fender Vibro Champ.
1. Fixing A Fender Champ Amp
2. Fixing A Fender Champ Amp | The Metal work
3. Fixing A Fender Champ Amp | The Metal work
4. Fixing A Fender Champ Amp | The Metal work
5. Fixing A Fender Champ Amp | Picture Instructions