Hi all,

I am looking for a bi-directional current loop to RS232 converter and was wondering if anyone on the list had anything pre-built that is not needed.  I have schematics and could build one but I would rather just buy if something was available. Nothing sophisticated needed. Also attaching a photo of something that I had in a drawer. Anyone every use this one before? Nothing found on the internet.

73 Eugene W2HX
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