er56

Here is a nice vacuum tube: ER56, Eveready Raytheon, 4-pillar radio tube. It looks like a triode with cathode. See pictures. Looking in RM it is not founded.
Attachments:

• Front picture (39 KB)
• Front closer (20 KB)

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ER is often found as a prefix for Eveready-Raytheon tubes. Yours is just  the same as a common 56.

 

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It looks different and it is from an other manufacturer. Where to upload?

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Dear Francisc
Nice that you have asked. In the meantime Konrad has installed the ER56 and we would be glad if you upload your photos to the tube.
Cordially,

Ernest

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