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Maarten · 6th Sep 2019, 12:13 pm

I guess the particular RFT factory those were made didn't have the equipment to stamp Philips factory codes and Philips didn't bother with an extra production step or didn't have the equipment anymore either.

6th Sep 2019, 12:13 pm	#19
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,203	Re: Solus brand EL34? I guess the particular RFT factory those were made didn't have the equipment to stamp Philips factory codes and Philips didn't bother with an extra production step or didn't have the equipment anymore either.