Museum |
|||||||||||||||||||||||||||||
|
Festungsfernsprecher D |
||||||||||||||||||||||||||||
...I believe it is a "Festungsfernsprecher D", but I would like to ask, if you have any further information about this particular model |
|||||||||||||||||||||||||||||
Zu dem im West- und Atlantikwall eingesetzten Festungsfernsprecher D gibt eine Vorschrift in unserem Archiv Auskunft: |
|||||||||||||||||||||||||||||
Der Festungsfernsprecher D wird in allen Fällen eingebaut, wo aus betriebstechnischen Gründen zwei Sprechstellen erforderlich sind, aus Raumgründen aber zwei getrennte Stationen nicht untergebracht werden können. |
|||||||||||||||||||||||||||||
Er besteht aus dem Fernsprechgehäuse D (doppelt), zwei großen Batteriekästen, zwei Kopffernsprechern, zwei Anschlußdosen für
Kopffernsprecher und einem besonderen Wechselstromwecker für das Sprechsystem II. Ab Baujahr 1939 ist dieser Wechselstromwecker an System I angeschlossen. |
|||||||||||||||||||||||||||||
The fortress telephone model D (Festungsfernsprecher D) was used in all cases, where two telephones were needed, but only space
for one. It consisted of the Case for fortress telephone model D (Fernsprechgehäuse D - D=double), two big battery boxes, two special head telephones, two sockets for head phone and a special AC alarm clock for system II. In
telephones dated after 1939 the clock was connected with system I. The fortress telephone model D is produced as special version of the normal Festungsfernsprecher. The casing containes two separate telephone systems I and II,
which are connected with two different lines in the fortress switch board. By use of the two two calls were possible at the same time. The two signal lamps showed, which of the two systems was called. The original hook for the
receiver was replaced by a lever for switching between the two systems. The operation of the station resembles that of a normal fortress telephone with one difference: by using system II for calling or for the end signal of a
call, the call switch has to be pressed while turning the inductor crank. When the phone is called via switch board, the alarm clock bells, while the accompanying signal is initiated. This signal is of a special construction,
either a “Schauzeichen” (disk with white stripes behind star shaped windows and turned by magnet against a spring) or a glow lamp. At the end of a call, the head telephones had to be unplugged, to avoid unnecessary
consumption of electricity. |
|||||||||||||||||||||||||||||
[Home] [Wo - where - où?] [Exponate] [Rundgang] [Mitarbeit] [Forschung] [Verlag] [Noch Fragen?] |