Accurate Tuning

Radio Record, Volume III, Issue 11, 27 September 1929, Page 31

Accurate Tuning

sd Speaker at a Distance [* is often a dificult matter to tune a receiver effectively in those cases in which the loudspeaker is situated in another room, or out of doors at some distance from the set. In such instances, the amateur generally brings the speaker near to the set whilst he conducts the tuning operations. Then, after the controls of the receiver are set, the loudspeaker is removed to its required distant position. Without going to all this trouble, however, there is a very useful method of effecting the same end. It will be noted that one of the loudspeaker terminals goes to the plate of the last valve. ‘To this terminal attach, in addition to the distant loudspeaker lead, one tag only of a pair of headphones. Under these conditions, a comfortable volume of reception will be heard in the ‘phones, and the necessary tuning. can be effected in this manner. Thus, the loudspeaker can remain untouched in its distant position, but the tuning of the set can, nevertheless, be accomplished quite satisfactorily.