Someone asked for a better schematic.? Ask and ye shall receive.
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I don¡¯t know how to insert an attachment directly into the text body of the email.? You will have to click on it to open it.
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Regards.
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Max K 4 O D S.
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I've Never Lost the Wonder.
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Antique Electronics Site:
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That¡¯s the best one yet.
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Regards.
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Max K 4 O D S.
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I've Never Lost the Wonder.
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Antique Electronics Site:
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There is a really trivial solution to this reversing diode-fuse thing.? My drawing is awful but you get the idea¡? You just need a 50 cent 10A 12V relay.?
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Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
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Staunton, Illinois
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Moderator ¨C North American QRO Group at Groups.IO.
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From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Sunday, May 13, 2018 10:08 PM
To: [email protected]
Subject: Re: [BITX20] UBITX Assemly Wiki Page #ubitx
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A search for 'reverse polarity" in this forum shows dozens of hits since the uBitx was released in early Dec.
Here's a few of mine:
??/g/BITX20/message/35353
??/g/BITX20/message/39877
??/g/BITX20/message/44499
I've given up trying to right that particular absurdity.
Unfortunately, we have hundreds of new hams with no fuse (or too big of one)
assuming they are protected when they are not.??
And some of them are bound to be a bit too careless as a result.
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Jerry
On Sun, May 13, 2018 at 07:23 pm, ajparent1/KB1GMX wrote:
One small point.?
If your using diode for reverse polarity protection it is better to place the
fuses BEFORE the diode as then the fuse blows and the diode is less
likely to be fried and also down stream circuits.
Allison
