Coils and Condensers.

Radio Record, Volume II, Issue 7, 31 August 1928, Page 28

Coils and Condensers.

A HAPPY medium is the best in choosing a coil and variable. con denser tv work toget:. in an R.F. cits cuit. The resistance of the coil varies ecousiderably with the frequency, whilst that of the condenser remains nearly. constant except at the lower end of, tl capacity scale, The resistance of; the condenser is usually lower than: that of the coil. By not making either the coil or condenser unduly large in proportion to the other, neither the voltage nor the resistance is at quite the best point, but the complete oscillatory circuit gives the best results;