Radio Products triode

Raytheon A

Raytheon B

Raytheon BA

Raytheon BA (bakelite)

Raytheon BH

Raytheon BH (bakelite)

Raytheon BR

Raytheon LA

Raytheon R

Sonatron MU-X 30

Soverign AC

Speed 291

Speed 293

Speed 295

Strong WD-12

Supertheon rectifier

Supertron 171

Sylvania SY-171C

Sylvania 29

Televocal TC-201A

Tigerman Detecto-Amplifier

Unknown 201-A

Unknown triode

Van Horne 5V-A

Van Horne 5-VC

Volutron A

Welsh WT501

Wireless AC

WLS 2950

WLS 2951

WLS 2968

WLS 2976

WLS 2977

WLS 4600

WLS 4602

WLS 4611

WLS 4621

WLS 4630

WLS 4631

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