but what is a "solid state vacuum tube" volt meter ???
I think it works like this--you take a 12AX7, and, using a diamond file,
carefully cut the tip off. Fill it with a good polyester resin and glue
the tip back on. Absolutely solid! Put that in your Eico!
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
so yes, I made that up - but I thought it would be descriptive.