[Amps] Actuating a 120 VDC relay with low voltage

[Alek Petkovic]

They come in a 60V and 200V DC version. 9 - 15V DC to switch them


On 27/12/2022 9:23 am, Alek Petkovic wrote:
> Yep. They are DC.
>
> On 27/12/2022 9:07 am, Paul Christensen wrote:
>>> "OPTO-22 electronic relay.  You can't get much simpler than that."
>> If going that route, ensure it's a DC-load solid-state relay -- not 
>> the more
>> common AC SSR type that typically depends on a zero-crossing. Last 
>> time I
>> checked, the PT-2500A amp has a -110 VDC amp key line.
>>
>> Steve, also consider the Keyall device: http://wb9kzy.com/keyallhv.htm
>> Easy to build, easy to install, and it doesn't care about load 
>> polarity: it
>> works with positive, negative, and AC amp key lines.
>>   Paul, W9AC
>>
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