I get asked quite often about my gear and settings, both now and back then.
Thanks for asking, and for all your kind thoughts and comments!

These days I'm playing a Dean USA Hardtail Collector,
with a Seymour Duncan "JB" pickup in the bridge position.

As in the old days, I still use the roughened edge of a nylon Dunlop 88 pick,
"scraping" the strings more than "picking"
(my strings are D'Addario 10's).

Through the 1970's and into the '80's I played Gibson Les Pauls straight into
old (late 1960's - early '70's) Marshall Super Lead 100-watt heads
(with two 4x12 cabinets each).
On the amps, I put all the tone controls on 10,
plugged straight into the top right input (high gain input, bass channel),
and put that channel volume control on 9 or 10,
controlling the volume (and gain) from the guitar.
If I needed more highs than the often "muddy" bass channel would give me,
I'd put a short jumper cable from the bottom right input jack to the top left
input jack and turn up the treble channel volume to increase highs as needed.

For most of the late-70's and early-80's I had DiMarzio Super II humbuckers
(the original ones, without the plastic covers)
in the bridge position of my Les Pauls.
In those days I wired the bridge pickup directly to the volume control,
which was wired straight to the output jack...
no other controls or pickups were connected.