Useful Hints

Radio Record, Volume V, Issue 26, 8 January 1932, Page 15

Useful Hints

[* you assemble your own batteries from dry cells do-.not- forget that good insulation between the rows: is even more important than insulation between the individual cells. ALTHOUGH tap water is sometimes used successfully to renew the level of the electrolyte in an accumulator, its use is decidedly risky, and distilled water (obtainable at a chemist’s for a few pence) is far better. (COPPER is usually considered the best metal for aerial wire, but phosphor bronze and silicon bronze run it close. (GENERALLY speaking, there is no advantage in using a "cage" or "sausage" aerial for broadcast reception, unless only a limited space is available. [Tf aerials attached to different sets are separated by only a few feet it will be impossible to avoid a certain amount of mutual interference when the sets are working. LONG lead-in should always be avoided if possible, so the best place for the set is close to the lead-in’s point of entry. De not throw away your old panels, for you will find that terminal strips and similar handy accessories can be turned up from them with-very little ‘trouble,

"TERMINAL shanks, soldering tags, and similar points should be filled and tinned before a set is completely assembled, as the operation is much easier at this stage than when all the components are screwed into place. yf a panel has become slightly bent by leaning up against a wall it can often be flattened by warming it, and placing it between flat boards on which a heavy weight is standing, until the ebonite has cooled.