Does anyone have specs on the WE422A?

I am using a WE274B as a rectifier in my Emotive Audio Sira LE linestage. I know of someone that substituted a WE422A with superior results on a SunAudio amplifier. Anyone know the specs on the WE422A or have experience with these tubes?
I have at least one of these (was thinking of selling it, no real use for it myself). It's a fullwave rectifier, Check for data sheets. I can't recall offhand if it is pin compatible with the 274 or not - possibly so.