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    These characteristics of Ferranti Audio Frequency Transformers warrant your serious attention .
  • Advertisement
    For the best results use two Ferranti audio frequency trans- formers , type AF-3, ratio 3.5/1.
  • Advertisement
    These characteristics of Ferranti Audio Frequency Transformers warrant your serious attention .
  • Trade literature
    N e w Audio Transformer.—A complete new line of high fidelity audio transformers a n d reactors, k n o w n as Super High Fidelity—• Series A, has been developed b y Ferranti Electric, Inc., 130 West 42nd St., N .... E a c h of these units has a frequency response of within =*= 1 d b from…
  • Gas-discharge tubes for control of microwave attenuation
    Under typical operating conditions at audio- frequencies, a 5 V peak a.c. signal, applied to an audio - frequency transformer insertedin the control electrodesupply cable, produced 0.5 V peak amplitudemodulation on a 2 mW 3 cm signal with a d.c .... Acknowledgements are due to Ferranti Ltd., who have provided'the facilities for carrying out this work, and to…
  • Great Names Behind the Institute
    recent years Doctor Ferranti had been in- pared the Nuovo Cimento description of his educated at the .... devoted exhaustive study to audio - received the professorship of applied phys- Bonn, where after graduation he became. .... frequency transformers , which he brought ics at Bologna and in 1873 was appointed assistant in mathematics and physics.
  • Advertisement
    is typical of the response secured by Ferranti Audio . .... Frequency and Special Impedance Matching Trans-. .... SPECIAL TRANSFORMERS , American built, can be shipped in 48 hours.
  • Electronic and Vacuum Physics Apparatus shown at the Physical Society's Exhibition
    In a model shown by Elliott Bros. (London) Ltd. the a.c. excitation is at supersonic frequency and the amplifier is therefore able to respond to audio - frequencies . .... Precision-wound potentiometers are being made by Ferranti Ltd. resembling in oumard appearance the familiar radio volume … made by Muirhead and Co. Ltd. which is virtually a variable-ratio auto- transformer similar to the…
  • Visible null indicator for A.C. Bridges
    When a visual indication is preferred to the audible one a vibration galvanometer may be used, but its sensitivity is greater at j o cycles per sec.than at audio frequencies . .... The components which may conveniently be used are: (A) Small transformer , ratio I 40. .... ( Ferranti Rd 434.) .
  • A micrometer levelling table
    When a visual indication is preferred to the audible one a vibration galvanometer may be used, but its sensitivity is greater at j o cycles per sec.than at audio frequencies . .... The components which may conveniently be used are: (A) Small transformer , ratio I 40. .... ( Ferranti Rd 434.) .