How do I test a Western Electric 422a Tube??

[HiFi-Stereo]

Picked up some tubes at a garage sale, and found a western electric 422a tube mixed in.
Want to check it, and I have 2 older tube testers, but neither have any info for testing a 422a.
Will I need a specific tester?

 

[kcline]

My US military TV-10 tester has settings for 422-A which is a dual rectifier. Does any of your testers test 5AR4 GZ-34? you can use those settings to see if the tube in question has output. 422-A and 5AR4 are close in specs. Hope this helps

 

[HiFi-Stereo]

My US military TV-10 tester has settings for 422-A which is a dual rectifier. Does any of your testers test 5AR4 GZ-34? you can use those settings to see if the tube in question has output. 422-A and 5AR4 are close in specs. Hope this helps

Thanks! I’ll give it a try!