Tuning unit

With nine stacked "spiderweb" coils and a variable capacitor. Was used together with a detector/amplifier unit (see picture below).
Data Circuit 1 Circuit 2
Serial number: 1912 X
Dimensions: 26 x 17 x 10.5 cm
Made in: 1923
Purchased in: 2006

What was broadcast in 1923?
 

Listen to "Là Haut" sung by Maurice Chevallier, recorded in the Paris Casino in 1923
 
Interior with "spider web" coils and variable capacitor.

Here a boîte d'accord is placed next to a detector/amplifier unit.

This page was last edited on 27.04.2019