Curing Microphonic Howl
(SONSTRUCTORS are occasionally troubled by a howl which issues from the loudspeaker when the set is switched on, and which tends to build up until it completely drowns’ the broadcast programme. This is probably due to microphonic howl, which is caused by sound waves from the speaker impinging on the detector valve. The trouble can be overcome by wrapping a quantity of cotton-wool around the glass bulb of the detector, thus shielding it from the loudspeaker. The quantity required may be determined by experiment, and it can be easily attached to the bulb with thread.
Permanent link to this item
Hononga pūmau ki tēnei tūemi
https://paperspast.natlib.govt.nz/periodicals/RADREC19301128.2.39
Bibliographic details
Ngā taipitopito pukapuka
Radio Record, Volume IV, Issue 20, 28 November 1930, Page 10
Word count
Tapeke kupu
98Curing Microphonic Howl Radio Record, Volume IV, Issue 20, 28 November 1930, Page 10
Using this item
Te whakamahi i tēnei tūemi
See our copyright guide for information on how you may use this title.
Log in