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RE: DIY amplifier selector suggestions.

Maxhifi - I did the same thing with my system. I used two DPDT toggles from Radio Shack rated at 10 Amps each. Been using this setup for over ten years now without any ill effects. I don't worry abouit the contact resistance because I chose a heavy duty switch.
But don't switch it hot, when signals are being amplified. This may damage the contacts as they may arc.
Also, and very important, DON'T DRIVE YOUR TUBE AMP WITHOUT THE SPEAKERS CONNECTED. I always turn the volume up slowly, and if I don't hear anything, back the volume down to minimum and switch the speakers over.
Pete

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