CRYSTAL CONTROL AT KFI.

Radio Record, Volume II, Issue 6, 24 August 1928, Page 10

CRYSTAL CONTROL AT KFI.

NEW ERA HERALDED THE latest American mail brings news that KFI has now installed crystal control, similar to that which 2YA carried out some time previously. KFI is quite proud of its pioneering, and the occasion is referred to as follows :- "Marking the dawn of a new era in radio broadcasting, KFI officially when on the air on Saturday night with their new Western Electric crystal-controlled double oscillator and modulator unit. Until this time this type of equipment, the product of the best brains of the Western Electric and Bell Telephone Company laboratories, has been entirely confined to experimental stations. , "The advent of the new unit marks the doom of the oid style equipment," says Mr. Anthony, owner of the powerful Los Angeles station. "Before KFI installed the huge crystal control panel, its modulation was about:thirty per cent. This has been increased to 80 per cent. without any additional power, which means that distant listeners who formerly heard K¥FI’s carrier wave will now be able to bring in voice and music without difficulty. Undoubtedly, before long KYFI’s example will be followed by smaller stations on the Pacific Coast, and this will greatly reduce the present interference problem."