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Re: Yes - these look like 50's Philips Sittard Holland Production

Thanks for the info

The complete date code is;

rX3 X6H

So, are these early Mullard or Early Amperex D getter types, or both without being either?.

What I dont undestand is the non-Mullard plate (not round hole, but rectangle slot instead), but the rX3 Mullard code (not sloping triangle like Amperex code).

Any other info much appreciated.

thanks,
shane.



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