[GreenKeys] Current limiting
riceguy
riceguy at peoplepc.com
Tue Jan 20 12:24:35 EST 2009
Michael O'Day wrote:
> Randy said in his explanation:
>
> "As noted above even with teletypes "designed" for low
> voltage keying - a certain "RiceGuy" has been known to
> replace the low voltage coils in his 35 and run it on
> a traditional loop (URA-8, etc.). Obviously - there is
> "wiggle room" here - particularly with the later
> machines where things weren't pushing the limits quite
> as hard as say the 15."
>
Rice Here - with a small correction - - -
I Key my 35ASR with 1ea URA-8 keyer circuit
at the 25 volts DC from opening up the local loop
(low level) at the 35ASR - Nothing is change other than that.
I also rewound the selector magnet on my 32RO to
run at 60 ma vice 500 ma and eliminated the
SMD card and all the rest of the associated
circuit paraphernalia in hopes of installing
the 32 into a TAM cabinet.
Hope this clarifies this issue somewhat.
> Does that mean the 15 requires a higher voltage that
> the 33? I recently aquired a 15, do I need to build a
> HV (120+) supply for it, or can I run it on one of
> those Black Box RS232/Current Loop adaptors?
>
> Mike - N9ODM
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