O.K. - enough already. I was in elementary school at the time. I thought I remembered them being called FETVOMs, but I figured everyone knew what a VTVM was, and since I was only pretty sure that they had FETs as their active component (it's the only type that makes sense, though), I called them "solid state VTVMs" so yes, I made that up - but I thought it would be descriptive.