Please feel free to check out his Tucson, AZ website kentonelectrix to see more pictures and a full description of the maintenance preformed.Excellent condition Fender Princeton Reverb. We just got this back from our amp tech, Kenton.
A very late model Princeton Reverb, this one came to me in “Museum Quality” condition - meaning it had never been opened, touched, had a tube changed, or ever been played more than a handful of times. No scratches, stains, or wear whatsoever. One of the nicest examples of a Silverface Fender I have ever seen.
That being said the amp is still 40+ years old, and as such it needed a complete cap job, bias adjustment and it had a 12AT7 that was oscillating badly when the master volume boost feature was turned on. All the tubes were original GE and Sylvania made, Fender branded type that all tested good with exception of that 12AT7, which just didn’t jive well with the boost circuit. I believe it would work just fine in the same type of Princeton amps that did not have this feature. I replaced it with a JJ 12AT7 which worked better.
All caps were replaced with upgraded voltage and temperature rated MOD brand electrolytic’s. The cap can was replaced with a new vintage spec CE brand multi-section 20/20/20/20uf 475v type unit. The non-adjustable fixed bias was cooled down with a parallel resistor network to bring the Plate Dissipation to a correct %62 with a B+ of 424 VDC. The death cap was deleted for safety reasons rendering the ground switch non-functional. Lastly the chassis screws/nuts were replaced as the old ones had tolex glue that had dripped down the threads, making the chassis almost impossible to remove
This amp is available to view/play at Gabriel's Guitars 6061 E Broadway Blvd #124 Tucson, AZ 85711