File talk:Philips MiniWatt CH42.JPG
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[edit]I guess this is an ECH41; hexode-triode. Madyno (talk) 21:43, 15 October 2022 (UTC)
I guess this is an ECH41; hexode-triode. Madyno (talk) 21:43, 15 October 2022 (UTC)[reply]