Four valve radio for reception of medium and
long wave
The oak cabinet with doors opened. Control panel from left to right: primary
tuning, volume control, feedback,
secondary tuning. Below: on/off and wave-range selector. A
special cabinet that houses the batteries or battery eliminator
could be ordered with the radio. Brandsteder in Amsterdam also
made a cabinet for this radio, as can be seen
here.
Listen to "Dies
Bildnis ist bezaubernd schön" from the opera "Die
Zauberflöte" by Mozart,
sung by the Hungarian tenor Koloman
von Pataky,
recorded in 1927
The NSF 4 with oak cabinet
The cabinet was made in oak or mahogany. The
price was f 55,-
The closed cabinet
Interior with four valves (B405,
A415,
A415,
A442)
Type plate with logo of the Nederlandsche Seintoestellen Fabriek with serial number:
5018. This numer is not the same as the number on the chassis:
1579
Original advertising litho
Advertisements for the NSF4
Advertising leaflet for the NSF4,
about 1928
Assembling the NSF4 in 1927
The AC version of the NSF4 with 2504 valve for negative grid bias (1929)
The type plate with the logo of the Nederlandsche Seintoestellen
Fabriek and the serial number: 17499. The number on the cabinet matches the one on chassis, under the right tuning condenser (sometime chassis move to another cabinet...).
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