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12DC Sockets

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the OP said:
& so far I have resisted asking how you can have a battery & another source inline because I'm expecting you to tell me that it is possible even though my logical brain is screaming at me

Have you ever heard of addition/subtraction?
 
Your This meter I have link doesn't work either.

erm no......that was me, try again **broken link removed**

The L-com things are easier to put into a box since they have mounting ears.

Looks good **broken link removed**

The purpose is to just figure out if whatever we come up with for a charge port actually works. I'd love to have one too.

So8unds like fun, I'm up for making one **broken link removed** happy to be test pilot, then if it works I'll let you copy **broken link removed**
 
Read PDF pages 23-38 here:

http://www.keithley.com/knowledgecenter/knowledgecenter_pdf/LowLevMsHandbk_1.pdf

Copy and paste the link.

It's about OP amps and ammeters. The whole book is good. Copy it to your iphone at home and read it later.
 
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