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WESTERN ELECTRIC 6b TRANSMITTER
http://kjq.us.com/kfrcinthebeginning/we8bspeechinputequip.html
Shown above is the Western Electric 8B Speech Input bay. The left bay includes an 8-C microphone preamplifier followed by a 9-A line amplifier and a 203-A TU meter panel. The right bay includes a 350VDC power supply, input patch bays, metering, and a precision clock. Batteries were used to power the filaments and supply bias voltage to the tubes.
WESTERN ELECTRIC 6B TRANSMITTER
http://www.kjq.us.com/kfrcinthebeginning/we6btransmitter.html
Pictured above is the Western Electric 6B 1,000 watt AM transmitter with the companion speech input bay on the right. The transmitter consists of two bays, an exciter unit on the left, and the power amplifier unit on the right. The round speaker on the table is the Western Electric 540-CW Loud-Speaking Telephone monitor speaker.
CONDITIONED GENERALIZATION OF THE GALVANIC SKIN …
https://psycnet.apa.org/journals/xge/39/6/868.pdf
a Western Electric 6B Audiometer with a Western Electric /ooA headphone matched to the audiometer and rated in db's at the ear. Only one phone was used, and it was set to the subject's preferred ear with a dummy phone o n the other to balance the headset. While the 6B audiometer has a continuous frequency band,
Hearing Testing History: Western Electric 2-A Audiometer ...
https://hearinghealthmatters.org/waynesworld/2015/hearing-testing-history-western-electric-2-a-audiometer/
Figure 1. Western Electric 1-A audiometer. Western Electric 2-A Audiometer. A short time later, 1923, the first widely-used audiometer at that time, the Western Electric 2-A Audiometer was produced (Figures 2 through 6). This unit was more portable, designed to meet clinical needs, and was less costly. It was also powered by dry cells.
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