[GreenKeys] 20ma current loop for my Dad's KSR 33

[Andy KN4UCL]

Jeff - good luck with your project! I don’t know if you are aware of David Mcnaughton’s IMSAI 8080 esp32 Kit - but that night be a neat step to add.  

> On Oct 7, 2019, at 6:47 PM, Jeff Albrecht <jeffa at rodaw.com> wrote:
> 
> This was my Dad's. Wayne says it is a TWX machine. Dad had it hooked up to an IMSAI ~ forty years ago, although all the details of his connections that apparently were made in one of the two connectors that look like they would be hooked up to a phone system have been lost. I'm pretty sure it was via a IMSAI SIO. I personally played Star Trek on it. 
> 
> I'd like to connect Dad's KSR like I did with this ASR 33 I bought several years ago and hooked it up as shown on my wiki page; 
> https://wiki.theretrowagon.com/wiki/20ma_current_loop_to_RS-232_conversion#Image_details Theoretically should that wiring configuration work on Dad's KSR? The numbered screw strip in the second image?
> 
> So I went to plug it into A/C to see how it did in Local mode. 2 of the 3 fuses (see last image) are labeled. The third that is missing     it's fuse is not labeled. Any idea what fuse value I should place in there?
> 
> <iblofbbohjbalcec.png>
> 
> Inside the KSR show above.
> 
> <mbdgklbiklcakaab.png>
> 
> <kgdbcpbipclofnio.png>
> 
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