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Radio Society of Great Britain published my book

https://www.rsgbshop.org/acatalog/Radio-Broadcasting-2211.html#SID=26
A man, a Mouse and a Morse key: the story of a radio amateur in Kyiv as the russian invasion unfolds.

https://www.bbc.co.uk/sounds/play/m001gj61

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When my active probe have burned I decided not to repair it because high cost of its OPA653 but made new one with cheap BF998 dual-gate MOSFET
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