Re: [Amps] Modern rig amplifier keying

[donroden@hiwaay.net]

Your modern rig instruction manual should have the numbers you are  
looking for.
Maximum current is just as important as maximum voltage.  If your rig  
uses an open collector transistor instead of a relay, it might be good  
practice to add a "snubber" diode across the circuit to prevent back  
emf from the amp's relay.
Don W4DNR





Quoting Jim <jimw7ry@gmail.com>:

> That should be fine.
>
>
> Thanks
> 73
> Jim W7RY
>
> On 7/18/2019 8:46 PM, Stan Gammons wrote:
> > How much voltage will modern rigs tolerate on the keying circuit? I  
> > have an older amp that has a 12 volt relay. Will that fry the  
> > keying circuit of a modern rig?
> >
> > 73
> >
> > Stan
> > KM4HQE
> >
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