[QRZ] Why did 2.5V tubes hang on so long?
"Boat Anchor" & Classic Equipment /////////////////////////////////////////// Why did 2.5V tubes hang on so long? Posted: 19 Oct 2020 04:14 AM PDT https://forums.qrz.com/index.php?thr...o-long.730186/ /////////////////////////////////////////// Using R2001D to measure frequency Posted: 18 Oct 2020 01:18 PM PDT https://forums.qrz.com/index.php?thr...quency.719118/ |
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