Improving the Pick-up

Radio Record, Volume IV, Issue 11, 26 September 1930, Page 3

Improving the Pick-up

HAVH been experimenting with pick-ups and thought you might be interested in the results-perhaps make some comment on them. The amplifier and speaker (movingcoil) are specially constructed by a firm in Dunedin. The amplifier uses a 210 valve and the whole is extraordinarily good-my radio gives about twice the undistorted output of an A.C. set and infinitely better qualitynot booming bass and weak treble. As a gramophone with a standard pick-up it also was very good. However I happened to have a powerful

electro-magnet and can work it from a tap of the transformer in the amplifier. This magnet I put on the pick-up, and the improvement was re-markable-bass coming out much better than one ever hears it from the studios. I have yet to hear a commercial electric gramophone to equal it for all-round performance-volume, brilliance, separation of instruments, ete. Why should an increased flux make this improvement? And one wonders why it has not been used in commercial pick-ups--A. J. Trotter, North Otago. {The improved quality is due no does not the greater weight damage did not the greater weight damage the records?-Tech, Hd.]