[GreenKeys] New Teletype Model 28 ASR

[Jim Haynes]

Instead of optoisolators I would suggest solid state relays, which
can handle lots more voltage and current and have more gain.
Attached is someone's list of them

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man
-------------- next part --------------
A non-text attachment was scrubbed...
Name: loop_keyers.pdf
Type: application/pdf
Size: 97110 bytes
Desc: 
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20190728/36985a7d/attachment.pdf>