Dr.
Eugen Nesper (1879-1961) was a well known German radio
pioneer, who wrote books and articles and published
magazines about radio.
The brand
name "Dr Nesper" was used for a number of items,
including head sets and loudspeakers. It is quite
certain that this loudspeaker was made by Telefon und
Telegraphenbau AG W.A. Birgfeld, Prenzlauer Allee 55,
Berlin. This company uses the same
sinusoidal
logo with concentric circles
shown on
theset screwof the speaker.
Data
Serial number
A3120
Dimensions (h × w)
45
x 11.5 cm (the diameter of the flare is 15.6 cm)
Made in
±
1925
Purchased in
2013
Sold
in:
2024
DC
resistance
2000 Ohms
What was
broadcast in 1925?
Listen to "Tea for Two" by Eric Borchards Jazzband, recorded in Berlin in 1925.
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