[GreenKeys] Hall ST-8000 and driving / switching a loop?

Nick England navy.radio at gmail.com
Fri Dec 4 13:01:40 EST 2020


The manual says the ST-8000 is low voltage in/out only. Evidently the
LP-1200 includes level converters as well as a loop supply.
Nick


On Fri, Dec 4, 2020 at 12:52 PM W2HX <w2hx at w2hx.com> wrote:

> Steve, as long as there is one current supply somewhere in the loop you
> just connect up everything in series. I don’t have my 8000 in front of me
> but if you need more help, I can dig it out.
>
>
>
> 73 Eugene W2HX
>
>
>
>
>
> *From:* greenkeys-bounces at mailman.qth.net <
> greenkeys-bounces at mailman.qth.net> *On Behalf Of *highpwr at bellsouth.net
> *Sent:* Thursday, December 3, 2020 10:48 PM
> *To:* GreenKeys at mailman.qth.net
> *Subject:* [GreenKeys] Hall ST-8000 and driving / switching a loop?
>
>
>
> Using a HAL ST-8000 here for my RTTY ops, question since I don’t have the
> HAL mentioned LP1200 how would I drive say a Model 28 printer (which I
> believe has a loop supply built in) or something like a Kleinschmidt TT-76
> which also has a loop supply.
>
> In other words if I have a loop supply how do I switch / control it with
> the HAL St-8000.
>
> Thanks,
>
> Steve
>
> KM4V
>
>
>
>
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