Philips 2016 Konus-Lautsprecher heptagonal

Country:  Netherlands	Manufacturer / Brand:  Philips; Eindhoven (tubes international!); Netherlands
Year: 1928–1931	Type: Loudspeaker (speaker or headphone)

Wave bands	- without
Details
Power type and voltage	No Power needed
Loudspeaker	Magnetic loudspeaker (reed) generic. / Ø 33 cm = 13 inch
Power out
from Radiomuseum.org	Model: Konus-Lautsprecher heptagonal 2016 - Philips; Eindhoven tubes
Material	Bakelite case
Shape	Miscellaneous shapes - described under notes.
Notes	LS mit 7eckigem Rand; zum Anhängen oder Aufstellen.
Price in first year of sale	51.00 RM
Collectors' prices
Source of data	Radio-Diehr, Berlin, 1928 / Radiokatalog Band 1, Ernst Erb
Mentioned in	Katalog Prohaska 1930/31 (dick)
Picture reference	Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

http://www.radiomuseum.org