[GreenKeys] Solid State relays

[Bruce Lane]

	That's because, if I recall correctly, a triac is, essentially, a pair of diodes back-to-back. As to what specific characteristic makes it not want to conduct DC, well... that I couldn't say. I just know it's not the right device to use for a DC circuit.

	Either an optocoupler or a DC-rated solid-state relay should be used.

	Happy tweaking.

*********** REPLY SEPARATOR  ***********

On 25-Aug-10 at 14:50 Larry Tighe wrote:

>Yes but.....the ohmmeter is very low voltage DC and responds to the 
>closures...in either polarity direction !
>
>lar
>----- Original Message ----- 
>From: <hunybuny at eskimo.com>
>To: "Larry Tighe" <larryradio at att.net>
>Cc: <greenkeys at mailman.qth.net>
>Sent: Wednesday, August 25, 2010 2:35 PM
>Subject: Re: [GreenKeys] Solid State relays
>
>
>> 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
>
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