[GreenKeys] Re: GB> What's A "Isophon Lautsprecher"?

[mikea]

On Mon, Dec 01, 2003 at 02:43:15PM -0500, Merz Donald S wrote:
> Hmmm...What I have here is 2 small packages about 3 inches square
> and 1 inch deep. The label on each one says "Isophon Lautsprecher
> St HB 7 S228". Inside each package is a 1/2 inch thick bakelite and
> aluminum assembly with a grille on one side and 2 wires on the other.
> The label on the back of each of these is the same as on the package.
> Molded into the back of each one is "Made in Germany". Hmmm...it
> doesn't say "made in West Germany" and it is too old to be made in
> post-USSR-breakup Germany. So I conclude that these were made in
> pre-war Nazi Deutschland.

> Anyone? Any Guesses? Any referrals to someone who might know? These
> were found in an estate in a paper Cameradio bag on which was written
> "electro-static".

> Any that's all the clues I've got to give you. Any help appreciated.

Sounds a *lot* like an electrostatic loudspeaker. Dunno what it wants
in the way of drive, but it probably isn't 4/8/16 ohms impedance. 

-- 
Mike Andrews
mikea@mikea.ath.cx
Tired old sysadmin