When I thought to do some Audio flogging (so's to get my Own better gear) I got a demo==call-it-New 503,
a paltry 500 KHz (!) BW, but with the display, triggering etc. of Tek built-in.

Lab rife with 545s (maybe -Bs also, but not in Our bailiwick.) So I arabesqued the vacuum-tube era ..never having seen, turned knobs of the 547, as progress -->Happened (well, at Tek anyway.)
(Even at Lab when first I arrived, the Electron Synchrotron had execrable == pre-Tek scopes) I recall Our first shiny 545 and Oohh ing over a Real "time base" (not yer Gramma's Theremin-with-pots/potentiometers.)

I wonder if you Can become conversant with electronics ... via simulators as so-fit-the Game-mentality now purporting to render obsolescent: EXPERIMENT!
Believe that baby already went out with other shades of bath-water



Get OFF my transistorized-LAWN! {{sigh}}