Re: [Elecraft] SP3 A/B Switch Problem (IK4EWX)

2019-12-26 Thread Geert Jan de Groot
I had the same problem about one years ago. I have two SP3 loudspeakers, on on each receiver or both speakers, ore one receiver with the K3S audio effects that use both loudspeakers. The switch scratched when changing channel and it attenuated the audio signals. Keep in mind that the SP3

Re: [Elecraft] SP3 A/B Switch Problem

2019-12-26 Thread IK4EWX
I had the same problem about one years ago. I have two SP3 loudspeakers, on on each receiver or both speakers, ore one receiver with the K3S audio effects that use both loudspeakers. The switch scratched when changing channel and it attenuated the audio signals. The italian service obtained from

[Elecraft] SP3 A/B Switch Problem

2019-12-25 Thread Ferris Jennings
My SP3 A/B switch has an issue. I use the supplied speaker cable from my K3S to the speaker A jack. I listen with the switch in the A position, but frequently push it in to the B position as a convenient mute. Switching back to A to listen, the sound is somewhat muted scratchy; cutting in and out

Re: [Elecraft] Sp3 a/b switch

2017-02-18 Thread 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

Re: [Elecraft] Sp3 a/b switch

2017-02-18 Thread Don Wilhelm
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

Re: [Elecraft] Sp3 a/b switch

2017-02-18 Thread Harry Yingst via Elecraft
Doing so would mean outputting the K3 into an open load I would at a minimum turn down the volume on the K3 From: Richard Donner <richarddn...@gmail.com> To: "Elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Sent: Saturday, February 18, 2017 10:32 AM Subje

[Elecraft] Sp3 a/b switch

2017-02-18 Thread Richard Donner
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. Thanks Richard __