amplifier switch

I’ve had two older amps recapped by Peter Williams at Quirk Audio in the past two years. Peter does great work, but now I’m faced with the decision on which amp to keep in my main setup. To help with the comparison over the summer, I’d like to get an amp/source selector switch. Do any of you...

The problem is that vacuum tube amplifiers can be damaged or destroyed if powered on without a load on the speaker terminals. Therefore the switch should not only switch amplifiers, but also switch the unused amplifier to a dummy load to protect the vacuum tube amplifier in case you...