hi Myles- With "Long plate"/"Short plate" in Preamp tubes- what are some generalizations you can point out about the differences? I only read that "long plate=more microphonic". Can you summarize these two types? Or lead me to a site somewhere.? I looked on your site but couldn't find.. maybe its so obvious there's no discussion of it ! Also perhaps the what/why and the valid-invalid arguements for and against? Thanks alot