KEEP SPARE VALVES
Don’t put too much faith in the valves you purchase, unless they are . of a very reputable manifacture, and even then they are not always the best. (Juite often considerable trouble can be traced directly to bad valves. If the receiver is not functioning as you know it should try several changes of valves. No volume, tinny resounding sounds in the speaker, undue noises and peor quality may be traced to the valves. Inability to get DX stations might be attributed to this, therefore occasionally substitute valves, even though they were just recently bought. : The wise radio enthusiast will have a fair supply of spare valves available, so that chanees can easily and readily be made in the event he is not satisfied with the wav tle set is operatiny. Remember, a valve that does not Work good in one certain type of cirenit will tunction surprisingly well in) anether.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19271118.2.38
Bibliographic details
Radio Record, Volume I, Issue 18, 18 November 1927, Page 11
Word Count
153KEEP SPARE VALVES Radio Record, Volume I, Issue 18, 18 November 1927, Page 11
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