1921 Westinghouse RC (RA-DA)
This is a 1921 Westinghouse RC (RA-DA) three tube regenerative receiver
manufactured by the Westinghouse Electric and Manufacturing Company of East
Pittsburgh, Pennsylvania. This unit was also sold under the Radiola name and was one of
the first commercially produced radios.
The receiver is a two section receiver housed in a single wood enclosure. The section
on the left is the "RA" unit and functions as the tuner of the recever. It contains
a variometer for tuning in the radio stations and the tickler variometer for controlling
the regenerative feedback. The section on the right is the "DA" unit and functions
as the detector amplifier. It contains the three tubes - one type UV-200 for the detector
and two types UV-201-A for the first and second audio amplifiers. The combined RA-DA
receiver is known as an "RC" receiver. A separate accessory known as an "RT" is
available to increase the selectivity of the receiver. The RT unit is a variometer
similar to the RA unit and will help pull in distant radio stations in the presence of
local stronger radio stations. I do not have the RT unit. There is a little door
on top of the DA unit that opens to provide access to the three vacuum tubes.
Below is a closeup of the front of the radio.
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Below is picture of my operating setup. I have built a power supply for
my battery radios. I built a power cable for all of my battery radios
and attached a Cinch-Jones plug to the end so that it will plug into
the power supply. Therefore I can quickly and correctly connect up the
power supply to any of my battery radios. The headphones are vintage Trimm
The radio works well receiving WLS and WBBM in Chicago, WHAS and WKHY in Kentucky,
and WSM in Nashville.The radio is not particulary selective. Westinghouse
made an accessory unit called the RT that would provide greater selectivity.