I came across this, put up by a fellow Peavey T-40 fan, who
clearly loves the thing.
The best one I have seen.
It is quite long, about 20 minutes but well worth a look.
The only bit he missed was that when only the bridge pick-up
is on, in single coil the phase switch is a coil select - nearer bridge
or nearer neck coil. He also describes things made of steel - they
are not, it's Zinc Die Cast. His is 12lbs!!
I do have one at around that weight but most average 10.5 to
11lbs - about the same weight as a 70's Ash P.