Richard,
If your K3 has all the audio amplifier mods installed, there should be
no problem. If you have an early K3 without those mods, you could
damage the speaker audio amplifier by driving it into an open or shorted
load. Yes, the A/B switch will make the load to the K3 an open circuit
when switched to the non-K3 position.
See the listing of K3 mods to determine whether your K3 has the mods
installed when you bought it or if they should be added.
Adding the mods is not difficult and can prevent a trip to Elecraft for
your K3 should the audio amp fail.
73,
Don W3FPR
On 2/18/2017 10:32 AM, Richard Donner wrote:
Hi
I was wondering if there is a problem using the A/B switch on the SP3
as a on / off switch for audio from the k3. The k3 would be on.
It seems like this would be ok but I am checking with the experts here.
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