Unusual HiFi products from the past.

oh, yeah, baby! -- field coils are where it's at!

I know some guys...

https://hifiheroin.blogspot.com/search?q=tungar

Well -- not really... but, I mean, you know that.
(EDIT: But -- yeah -- I do see your point, and take it! )

Electrostatic transducers use a high voltage DC field (thousands of volts) with very little current. Like Dogbert -- I mean, Thor, Dog of Thunder.


https://dilbert.com/strip/1990-01-10

Electromagnets (field coils) are energized with fairly low voltage DC (tens of volts) but usually with significant amounts of current.
In the old days, the loudspeaker field coil often served double-duty as a power supply choke (inductor), too!




There are - arguably - real advantages to using electromagnets instead of permanent magnets... although electrical efficiency isn't one of those advantages.

I will confess that I cannot help but think about scrap metal yards when I think about electromagnets.

SeleniumFalcon wrote: »

Odd Job likes electromagnets in his line of work.

... and ain't that a great, early (Falcon-based) Ford Ranchero?!

OleBoot wrote: »

Not DIS Walkman, but....

Q:
What do you call somebody else's panda?

A:



source: https://icouldbeahero.blogspot.com/search?q=panda

SeleniumFalcon wrote: »

Did they sell a CD rewinder, too -- or were those just for rental DVDs?

Since I had dug this up for something else, might as well drop it here, too.



The Esquire is a pretty interesting little loudspeaker -- a lot like the Klipsch Heresy (small-ish sealed box, high sensitivity, good dynamics -- and the same tweeter!) but, unlike the Heresy, a much, much better sounding midrange driver (direct radiator instead of horn/compression driver).

pitdogg2 wrote: »

$123.00 shoot I'll take 2

I mean, I paid less than that for mine... but, heck yeah.

soundfreak1 wrote: »

child's toy.

Should take those to he Headphones forum.