[DISCLAIMER: The following text is taken from the U.S. War Department Technical Manual, TM-E 30-451: Handbook on German Military Forces published in March 1945. — Figures and illustrations are not reproduced, see source details. — As with all wartime intelligence information, data may be incomplete or inaccurate. No attempt has been made to update or correct the text. — Any views or opinions expressed do not necessarily represent those of the website.]
CHAPTER VIII. EQUIPMENT
Section V. ENGINEER EQUIPMENT
4. German Mine Detectors
a. MINE DETECTING ROD, 1939 PATTERN. (1) Description. This detector consists of a length of light alloy tubing, one end of which carries a steel point, while the other carries a bayonet joint permitting a second length of tubing to be added when the operator is standing. The weight of the main tube and point is approximately 10 ounces.
(2) Employment. This detector is used as a probe, the point being dropped vertically into the ground from a height of about 4 inches. It is claimed that the nature of any underground object encountered can be recognized by the characteristic sound coming from the tube.
b. MINE DETECTOR BERLIN 40 TYPE B. (1) Description. This detector consists of a detector unit carried in a pack on the operator's back, a search coil, sectionalized pole, headphones, and cable connections.
(2) Employment. The variable condenser is adjusted to produce a suitable note in the earphones. Proximity of a metal object to the search coil produces a change of tone.
c. MINE DETECTOR Tempelhof 41. (1) Description. This is a portable detector provided with a loudspeaker instead of earphones. The whole instrument can be carried in an infantry pack.
(2) Employment. The tone control is turned to the right until the loudspeaker produces its maximum volume. In presence of a metal object the tone will rise in pitch.
d. MINE DETECTOR Frankfurt 40. (1) Description. This detector is contained in a wooden box which fits into a canvas pack. The pack also has a compartment in which the search coil can be carried when not in use. The box is divided into two compartments, one for the batteries and one for the detector. The wiring is exposed by removal of a sliding panel which is held in position by one screw. The tubes and batteries are accessible after removal of the front panel. The pole is in three sections. The search coil is housed in a bakelite moulding.
(2) Employment. The circuit is adjusted for zero balance. A tone is produced in the earphones by proximity of a metal object.
e. OTHER MINE DETECTORS. Other mine detectors in general use are:
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