Strange rectifier tube in Stewart-Warner

[mr-moe]

Came across a Stewart-Warner yesterday model R-404, RCC sheet #46.
It has a rectifier tube that has the number IV on it.
Never come across one of these before.
Someone, please tell me about this unusual tube.
Moe

• This topic was modified 1 year, 9 months ago by mr-moe.

[John Greenland]

Moe ;
The RCA tube manual RC11 lists an RCA 1V at 4 pins and a 6.3 volt heater on page 53.
See attached.

Attachments:

1. 

   RC11-1933.pdf
   

[mr-moe]

Thanks John, just what I needed.
Never came across one before.

[Author]

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