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Re: Conflicting information


Jack Purdum
 

For me, it's a bad-habit thing. If I get used to having two power sources connected, some day, just as sure as I"m sitting here, I'm going to plug in two power sources and get a min-Fourth of July show as I watch the magic white smoke that runs all electronic devices evaporate in front of me. I just think that, unless explicit told to do so, I just prefer to have a single power source.

Jack, W8TEE



From: davemrtn <davemrtn@...>
To: [email protected]
Sent: Thursday, June 1, 2017 8:33 AM
Subject: Re: [BITX20] Conflicting information

Actually, I don't think it will have any effect on the computer usb port.
The reason it would not harm the usb port is defined in the Arduino Nano schematic...
Look at the schematic -?
The Nano has this magic little 'check valve' called a diode.

David Martin - - Mountain Home, Ar. -----------------------------------------
Everybody complains about CO2, but nobody complains about all
the trees cut down to build Highways and Cities.
Recycle, Reuse, Re-purpose, Repair
On 6/1/2017 01:07, Dr Fred Hambrecht wrote:
It should not be done.? Putting two sources in parallel that may be at a different potential is never a good idea. While it may ?or may not hurt the BITX, it could play hell with the computer USB port.
?
v/r
Fred W4JLE
?
From: [email protected] [mailto:[email protected]] On Behalf Of John P
Sent: Wednesday, May 31, 2017 17:54
To: [email protected]
Subject: Re: [BITX20] Conflicting information
?
Thanks! Powering something from 2 sources simultaneously scares me as I already
blew up an expensive gimmick that way!




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