ODDS AND ENDS.
Never connect an old H.T. battery in series with a new II.T. battery.
When your aerial js not in use it should bo connected direct to earth outside the house.
• Don't, pull a valve out of its holder by ttigging at its glass bulb or you may loosen this from its base.
Owing to the possibility of short circuits, positive II.T. loads carried very near to screening boxes should be guarded with extra insulation besides that provided by the insulation covering the wire itself.
If the zinc for wet batteries ,is amalgamated at home it must not bo allowed to. come into contact with wounds rr broken skin, or the results may be serious, for the solution is very poisonous.
If you are building a portable set remember that the, modern anti-microphonic valve bolder allows of considerable movement of the valves, and that to protect llie.se, sponge rubber, or somo similar shock-absorbing material, will bo necessary.
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https://paperspast.natlib.govt.nz/newspapers/NZH19300206.2.7.4
Bibliographic details
New Zealand Herald, Volume LXVII, Issue 20482, 6 February 1930, Page 5
Word Count
159ODDS AND ENDS. New Zealand Herald, Volume LXVII, Issue 20482, 6 February 1930, Page 5
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