[GreenKeys] Model 19 and 15 on 20mA loop?

[hwhall at compuserve.com]

I seem to recall that the two coils of the 60ma pulling magnets were wired in parallel but that if you rewired them in series the pulling magnet would work on 20ma. I stand ready to have my memory corrected!  :-)
 

 Wayne
WB4OGM

 

-----Original Message-----
From: drlegendre . <drlegendre at gmail.com>
To: Andy Hager <magwheels at comcast.net>
Cc: Green Keys <greenkeys at mailman.qth.net>
Sent: Tue, Apr 12, 2016 12:21 pm
Subject: Re: [GreenKeys] Model 19 and 15 on 20mA loop?



Not like I'm any expert here, but I do have a later M15 machine with the holding type selector. My machine has a toggle switch - protected against accidental operation by a screwed-on plate - which selects 20mA or 60mA for the typing unit. It's the only toggle switch on the TU and it's clearly marked.


Unless your machine has the switch, I'd think you're probably out of luck. But if you have a 20mA converter on-hand, there's certainly no harm in trying it out. Either it works or it doesn't..



On Tue, Apr 12, 2016 at 8:03 AM, Andy Hager <magwheels at comcast.net> wrote:


I see here that if you have the holding type selectors the change is easy to make from 60mA to 20mA.  
 
But could the pulling type magnets also be used at 20mA loop current? 
 
73
Andy  


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