[GreenKeys] printing to KSR 28 was Re: OT: Radio Shack near bankruptcy

[Jeffrey D Angus]

On 11/14/2014 8:26 PM, Jim Haynes wrote:
> I'm not familiar with the Black Box things being offered, but there
> is this caution.  Some 20/60 ma devices like Models 32, 33 and 35
> operate at low voltage, so the converter circuit is pretty simple.
> Models 15, 28, etc. normally operate with much higher voltage, so
> the converter has to be able to withstand the voltage.
A few years ago I ordered several of the "black box" serial to loop
converters. Jim's right, they're rated at 65 VDC. They do NOT like 120
VDC loop supplies, NOR do they like the inductive kick back.

-- 
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com