Raytheon RGas Voltage Regulator1927
The Type R was an early regulator tube rated for 60 mA at 90 volts nominal output. The RCA 874 had about the same ratings.
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The Type R was an early regulator tube rated for 60 mA at 90 volts nominal output. The RCA 874 had about the same ratings.
Click the back button on your browser to return to the thumbnails