Early German Cinema ESL ! - 1920's -

[NewVista]

Anyone know how they made the Tri-Ergon Cinema ESL in the 1920's ?

Exhibit of Tri-Ergon optical film sound at Munich Museum:

http://www.deutsches-museum.de/en/co...lmprojektor/?0=

[NewVista]

Here's some English from text:

"absolute synchronization of soundtrack Filmund,

Konstruktion von Lautsprechern, die nach elektrostatischen Prinzipien ganz neu entwickelt werden mussten.

(Design of loudspeakers, which are developed by electrostatic principles throughout rebuilt)."

All information about these amazing early ESL's appears to have been lost as Museum only has Projector + some audio electronics. As this was also during the period of the Weimar Republic Hyperinflation? A time of economic collapse.

[beun]

Better translation:

Construction of loudspeakers on electrostatic principle which had to be completely developed from scratch.