Meltrope Pick-up (Electrical Transducer)

• Brand: Astrophone

Meltrope Pick-up (Electrical Transducer)

This comparatively new instrument is characterised by an extraordinarily good output in the bass. It will be seen that from 350 cycles downwards the increase in the output is very rapid, and this quality should prove useful in correcting for amplifiers or loudspeakers which are deficient in the lower register. Above 350 cycles, the output falls steadily until 6,800 cycles is reached, at which point the volts developed could not be measured with accuracy. It will be observed that the entire characteristic is free from serious resonances.

The pick-up is fairly massive, but extra pressure was required to produce accurate readings below 325 cycles. Actually, readings were taken down to 150 cycles, though some of these are not shown on the curve. The output of 150 cycles was 1.84 volts R.M.S. The record wear is satisfactorily small, and the pick-up is specially recommended where good output in the lower register is required.

Price, with tone arm, 50s.

Here you find 8 models, 7 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Meltrope (Brand), Amplifiers Ltd., London