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| GERMAN UNDERWATERS ORDNANCE MINES |
| Chapter 11 - INFLUENCE MINE UNITS - SVK AND LUFTWAFFE |
| Section 3 - ACOUSTIC MINE UNITS |
| A 107tc |
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Reactions in A 107tc are very similar to those in the ground mine version of A 107. Among the differences between the two circuits are the following: |
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1. Full-wave rectification of the signal current issued in A 107tc. |
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2. The rectifiers of the blocking circuit are placed differently. |
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1. Microphone transformer |
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2. Carbon button microphone D 102 Mi |
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3. 4. Copper oxide rectifiers |
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9. 10. Copper oxide rectifiers |
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5. Resistor 30 K Ohms 0 5 watt |
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6. 8. Resistor 3 K Ohms 0 5 watt |
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7. Resistor 100 K Ohms 0 5 watt |
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11. Resistor 10 K Ohms 0 5 watt |
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12. Resistor 5 K Ohms 0 5 watt |
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13. 16. Fuse-delay switches 5 Ohms, 0.5 ohm; 0.5 amp. |
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C1, C2, C3, C6 |
Elelctrolytic condenser 240/ufd. 10/12 volt |
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C4 |
Becherkondensator - 30/ufd. 120 volt |
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C5 |
Electrolytic condenser 50/ufd. 120 volt |
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C7 |
Paper condenser 0.1/ufd. 20/250 volt |
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F |
J-relay |
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Fu |
J-relay |
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H |
Delay master switch (72 hours) |
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T |
Thermostatic switch KTSE - 0.5° C. to + 35° C. |
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W |
Hydrostatic switch (24 feet) |
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Z |
Detonators (3) |
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The constants of the A 107tc circuit are not known at present, and it is not known what characteristics that unit has which make it particularly desirable for moored mine application. |
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