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The early AWA built sets ( 11 etc.) used cotton covered wireing ... imagine this scenario - tropical moisture and humidity to levels we cannot imagine down here and the cotton factor. Ideal for fungal growth . One unit up there devised a clever solution, they built a wooden box..housed the wireless inside it ..lined the box internally with light globes and kept them on - the only way the radio was kept going ...keeping the set dry and warm . In that case it was a AR7 receiver . Usually, the 11 set genemotors would last about 7 days before expiring , moisture intrusion a major factor . Plus, can you imagine lugging it around the jungle terrain. I couldn't carry the heavy thing 20 yards , let alone up and down hills and muddy tracks . Reading accounts of the Malayian campaign ,wireless communication was hopeless.. the 8th division had AWA 101 and STC 109 sets .. they had better luck shouting at each other from hilltops. The sets were low powered, .5 watt for the 101 and 10 watts for the 109. The reason so many Aust. 11 sets have survived is: many of them were not even issued ..they spent their life in storage. On some of them, you will see a red 'TP' stencilled on the case..this stands for Tropic Proofed . All they did was spray the insides with shellac , a natural varnish stuff made from Beetle wings. Around 43 or 44, PVC insulated wires arrived here . Before that the British used cotton, and a cheap rubber insulating coating e.g., on their 22 sets , with age it cracks and falls off....leaving bare wires ! Nasty. In the desert.. it's a different story.. dry and so on . Wireless was more effective there. Mike
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad Last edited by Mike K; 02-05-09 at 04:00. |
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