To: | <amps@contesting.com> |
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Subject: | [AMPS] a sticky issue. |
From: | Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK) |
Date: | Mon, 16 Oct 2000 14:24:26 +0100 |
measures wrote: >Burning up a tetrode's screen from >>>mistuning is unlikely because screen supply power transformers usually >>>have fast-acting fuses in the primary. >>> >>Can anyone think of a *worse* way to protect the screen of a tetrode? >> >Substitute a 20A slow blow fuse for the fast blow screen fuse? Wrap >aluminum foil around an open fuse and reinsert in the screen fuse holder? I knew you wouldn't disappoint me! >- During the entire time that the Plywood Box was in service, it >consumed less than 1 box of 5 fuses. Rated screen dissipation was 275w. >The fast blow fuse opened at roughly 200w. > Yes, I see... 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.com/g3sek -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com |
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