"IaVucn Clear up the_Tone! 7 4 Do you get a blast when 4 yol turn the volume up a 1 bit 2 The trouble 1S probably 1 In one valve---the valve in the last audio stage. Change that one valve to an RCA power Radiotron. Then turn up the volume 0 0 0 and it comes through clear #@RLDVie Amalganated @RELESS Wireless (Austratasia) Ltd C.P.o: Box 8309 WELLINGTON: 0 Qudio Cus FOR BETTER 1 83 1
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https://paperspast.natlib.govt.nz/periodicals/RADREC19300919.2.2.1
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Radio Record, Volume IV, Issue 10, 19 September 1930, Unnumbered Page
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76Unnumbered Page Advertisement 1 Radio Record, Volume IV, Issue 10, 19 September 1930, Unnumbered Page
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