Some of the earlier tube models had very thin PCBs on which the traces sometimes lifted. Clearly, not a good thing. Add in the heat generated by PCB-mounted tube sockets and and it's not exactly a recipe for longevity/reliability.
Regarding the tube models...they are what they are - Fender's first attempt at mass producing tube amps using PCBs instead of hand-wiring. They...uh...got better at it over the years. That said, if you like how one sounds and it's been properly maintained (and the price is right) then go for it.
I agree that the SS models are better than the tube models (less heat = better longevity). The Pro 185 is a particularly underrated amp, IMO.
Signed,
Most definitely not a Bloooooze Lawyer.
Last edited by hudpucker on Thu Oct 23, 2014 9:14 am, edited 1 time in total.
“If they act too hip, you know they can’t play sh*t.” - Miles Davis