|
|
|
|
|
|
Portable direction finder
The StSg 52 was a portable direction finding receiver built by
Wilhelm Quante
in Wuppertal (Germany) in the early 1950s. It was used
in the 1950s and 1960s to track down clandestine radio stations
and foreign secret agents. It's full name is Störspannungs-Suchgerät
(StSg).
[1]
.
|
The StGS 52 is a single conversion super-heterodyne receiver
with an intermetiate frequency (IF) of 470 kHz.
It contains 5 valves (3 x DF51, DK92 and DAF91) and is powered by
two battery sets: 6V for the heater and 72V anode voltage.
It was suitable for 3 frequency ranges:
- LW: 150 kHz - 350 kHz
- MW: 520 kHz - 1,4 MHz
- GW: 1.02 MHz - 1.4 MHz
|
|
|
The receiver is housed
in a wooden case, so that the internal window-antenna can be
used. It is operated by a trigger-switch hidden under the carrying
handle.
The unit shown here has been in use with the Dutch Agency for
Clandestine Radio, the RCD (Radio Controle Dienst), in The Hague (Netherlands)
until the 1960s.
A separate name shield with an internal inventory number
of the RCD is present on the receiver, just below the leather handle
(see the 5th image below).
Due to its limited frequency range (150 kHz to 2.7 MHz) it was
replaced later in 1952 by its successor the ASRV 52 that was suitable
for frequencies up to 11 MHz.
|
|
|
|
|
|
|
Quante was once an idependant German manufacturer of telecommunications
equipment, with its head office in Wuppertal (Germany). They should be
seen as one of the pioneers of the telecommunications industry.
At the height of their success (1999) they had an annual turnover
of 700 Million DM (350 Million Euro)
and a profit of 10.9 Million DM (5.4 Million Euro).
In 2000, they had 2400 employees on the payrol.
History
The company was founded in 1892 by locksmith Wilhelm Quante and was initially
based in Elberfeld (Germany), concentrating on the manufacture of heating
devices. Af few years later the company started to take on repair jobs
for telephone and telegraph lines of the German Post Office
(Kaiserlichen Post).
In 1910, the name was changed to Fabrik für Telegrafenbaumaterialen
und Apparate and later to: Wilhelm Quante Spezialfabrik für Apparate
der Fernmeldetechnik [2].
Quante AG
During World War II (between 1942 and 1944), Quante used female convicts
from Russia and the Ukraine, but not much is known about this period.
In 1967, the name of the company was changed to Quante Fernmeldemontagen
GmbH (Quante Communications Manufacture Ltd).
In 1988 the company was changed to a Publicly Listed Company (Plc),
which and entered the stock market on 22 March 1991 as Quante AG.
3M
In 2000, Quante AG was taken over by 3M and became a subsidary of 3M.
After a restructuring in 2003, the company's premises in Wuppertal was
given up and was moved to Neuss (Germany) [3]. Since then, the activities
have been integrated with 3M's and the name Quante gradually disappeared.
QFM
In 2005, after a management buy-out (MBO), Quante Fernmeldemontagen GmbH
was established. The new company specialises in the field of cableing,
networks and maintenance. In 2007, the company was renamed once again, and is
now called QFM Fernmelde- und Elektromontagen GmbH [4].
With offices in Berlin, Hamburg-Norderstedt, Wuppertal and Sindelfingen
(Germany), and over 200 employees, they are still
in business today (2011).
|
The above information is all we have at the moment. We have not been able
to find circuit diagrams and a suitable user manual for this device.
If you have additional information, or additional accessories,
please contact us.
|
|
|
|
Any links shown in red are currently unavailable.
If you like this website, why not make a donation?
© Copyright 2009-2011, Paul Reuvers & Marc Simons. Last changed: Thu,13 Oct 2011.10:14:10
|
 |
|
|
