12V .37A fans. Same circuit structure as the J2500. Could not find a
suitable PTC. May as well use the TIP41 and put an R and C between 12V
and its base for switch-on full-on confirmation and 47R over the
existing 27R 2W, to raise the "cold" fan voltage a bit, 4V I consider
too low, 1/2 normal rating is waht I'd expect for slow running, plus
initial kicker voltage. Fans are fine, the front one clogged with dust
and hair.