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17. IF ACOUSTIC FEEDBACK OCCURS
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18.1. Chairman Unit TS-911/811 and Delegate Unit TS-912/812 ................................ 44
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19.4. Microphone (standard) TS-903, Microphone (long) TS-904 ............................. 48
19.7. Distributor YW-1022 (2-branch distributor), YW-1024 (4-branch distributor) ..... 50