Another View of Master Control,
Radio City, San Francisco
Engineer-in-Charge George Greaves trains another engineer on the Master Control panel
at Radio City.
The operator here determined which studio program was fed to which
broadcast phone line on the network. Fourteen different circuits could be fed simultaneously, judging
by the number of VU meters along the top. All programs fed to KPO, KGO and the two networks
originated here. The extensive audio patch panels on either side could be
used to quickly substitute a failed studio amplifier in case of emergency. The telegraph sounder on
the desk was used to communicate with the KPO transmitter in Belmont.
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