ER640 II (ER640/2)

ID = 71471

Koch & Sterzel AG; : ER640 II [Radio] ID = 55964 539x308

Quelle: Otto Kippes

Country: Germany	Manufacturer/Brand: Koch & Sterzel AG; Dresden
Year: 1929 / 1930	Type: Radio or Tuner
Valves / Tubes	6:

Principle	Neutrodyne circuit TRF receiver
Wave bands	n/a no information
from Radiomuseum.org	Model: ER640 II
Notes	Spulen und Röhren sind total abgeschirmt. Schaltkontakte versilbert.

This model was suggested by Arpad Roth.

All listed radios etc. from Koch & Sterzel AG; Dresden
Here you find 73 models, 31 with images and 14 with schematics.