[Arny Krueger]

"Eeyore" wrote in
message
Arny Krueger wrote:

Impressive in the day, by modern standards it is a
peanut-whistle. Couldn't take much power, and had
virtually no linear stroke at all.

60W continuous IIRC.

That's what I remember.

Of course, power amps with more than 60 watts were very rare in the days of
tubes.

I have a number of friends who used 30W woofers in the day, some of whom
still have working examples to this day. A good modern 10" driver could
out-displace a 30 W. In the day, even EV's later SP-12s were more
practical.

No Kapton back then I assume, or not
in use as voice coil formers. Didn't work very well as
aircraft wiring insulation as it happens. It cracked too
easily and would arc over.

Materials sciences of those days, particularly glues and insulation, were
hardly what they are today.