[Elecraft] Sp3 a/b switch

[ab2tc]

Hi,

Why would the amplifier be damaged from driving an open circuit?
Transformerless solid state audio amplifiers typically are perfectly happy
driving an open circuit.

AB2TC - Knut


Don Wilhelm wrote
> 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.
> <snip>





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