RadioBanter - [QRZ] Evolution of the Chinese 572B tube

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January 6th 21 12:27 AM

[QRZ] Evolution of the Chinese 572B tube

Amateur Radio Equipment Reviews

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Evolution of the Chinese 572B tube

Posted: 05 Jan 2021 06:14 AM PST
https://forums.qrz.com/index.php?thr...b-tube.676593/

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