National EAS-20PW55 drivers - what speakers are they from?

[Homer4beer]

Hi guys,

I'm trying to find some National/Technics EAS-20PW55 drivers and am having a pretty hard time. What speakers did they come out of?

Maybe I'll have better luck searching that way (unless someone can put me on to some?)

http://audio-heritage.jp/TECHNICS/unit/eas-20pw55.html

Thanks guys,
Homer