keith eller (1 resultados)

Soft cover. Condición: Good. Firm binding. Pages lightly toned but clean and unmarked. Light soiling and some more prominent speckles and small spots or marks on the front and back covers. Spine darkened from sun exposure. A few small creases in the front cover. Most pages have a mildly bent corner or two. No water stains or wrinkling. The journal will be bubble-wrapped and carefully packed in a sturdy box to ensure safe transit. Articles in this issue include: "Note on the Effect of Reflection by the Microphone in Sound Measurements" by Stuart Ballantine; "The Receiving System for Long-Wave Trans-Atlantic Radio Telephony" by Austin Bailey, S.W. Dean and W.T. Wintringham; "On the Variation of Generated Frequency of a Triode Oscillator due to Changes in Filament Current, Grid Voltage, Plate Voltage, or External Resistance" by Keith B. Eller; "Sound Measurements and Loud-Speaker Characteristics" by Irving Wolff; "The Design of Transformers for Audio-Frequency Amplifiers with Preassigned Characteristics" by Glenn Koehler and "A Bridge Circuit for Measuring the Inductance of Coils while Passing Direct Current" by V.D. Landon.