~ In December last, a correspondeut, "R.M.," Dargaville, sent in a query which was answered by post. Owing probably to the address being rather scanty, this letter has been returned, so if the information is still desired this correspondent should write again. Raytheon B eliminator tubes are now stocked by Messrs. Thomas Ballinger and Co., Ltd., Victoria Street, Wellington, at 36s. each plus postage. A Raytheon BH tube delivering not less thau 85 milliamips is suited to most eliminators. The same firm also has in stock the Mullard U2 full-wave high-tension rectifier for B eliminators at 25s., plus postage. ‘This valve has a filament requiring 11 amp. at 4 volts. The DU10 is a half-wave, the filament requiring 77 amp. at 2.7 volts, price 17s. 6d., plus postage.
_ Construction | Continued
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https://paperspast.natlib.govt.nz/periodicals/RADREC19280217.2.28.5
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Radio Record, Volume I, Issue 31, 17 February 1928, Page 12
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129Untitled Radio Record, Volume I, Issue 31, 17 February 1928, Page 12
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