Is it possible to make a remote switchable transfomer circuit from OEP's to Lundals and back without hairy clicks pops and buzzes. I'm building 2 G9's right now (Actually I'm typing) and I will build one with OEP's and the other with Lundahls. That will give me an idea of the sonic differences between the two. If they are different I'd like to instead of making two more G9's add the transformer circuit for colouration. Input or output or both. Can a simple rotary or toggle switch do the switching between the two while powered up or do I have to switch off the units first. Can it be done while powered up? Bring on the ideas.