[GreenKeys] Solid State relays

[Robert Laag]

THAT IS A GREAT RELAY FOR CONTROLLING TTY MOTORS...  BUT, I FOUND AN ECG OPTO-ISOLATOR RATED AT 400 VOLTS OR SOMETHING AND USE THAT FOR MY INTERFACE FROM MINICOMPUTER TO RTTY LOOP...  HAS GIVEN NO TROUBLE AFTER 25 YEARS...

--- On Wed, 8/25/10, hunybuny at eskimo.com <hunybuny at eskimo.com> wrote:

From: hunybuny at eskimo.com <hunybuny at eskimo.com>
Subject: Re: [GreenKeys] Solid State relays
To: "Larry Tighe" <larryradio at att.net>
Cc: greenkeys at mailman.qth.net
Date: Wednesday, August 25, 2010, 11:35 AM

Hey Larry;

I'd guess because it is a SOLID-STATE relay and is expecting AC not DC.

I can't remember what that "transistor" is called, but it can handle
some serious VAC, but doesn't work with DC.

UE,
W6ESE - tony
NNNNZCZC

Larry Tighe wrote:
> Howdy Folks,
> 
> I have a solid state relay, rated at 240 VAC, 20 amps.  It can be keyed with 
> 6 VDC.  I put the ohm meter (analog) across the AC terminals and it opens 
> and closes the "switch" with 6 VDC.
> 
> I tried to key a tty loop with it and it won't close the circuit.  Anyone 
> tried playing with these successfully?  For now, I can't understand why it 
> would show on an ohmmeter with probably 3 volts from the meter and then not 
> close with 130 VDC and a 60MA magnet.
> 
> lar
> Larry
> K2JIA
> OFC 

-- 
Tony J. Podrasky | MicroSoft error messages written in Haiku:
                  |
                  |         You step in the stream,
                  |       But the water has moved on.
                  |         This page is not here.
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