On Mon, 07 Jan 2008 16:53:05 GMT, "Neil S"
wrote:

I am curious about this precision 910 tester. I have a 612 which is not
unlike this, but it has 10 lever switches to select the connections of the
10 tube terminals. On this photo of the 910 there is just a row of buttons.
Anyone know how the three choices [common, 'plate' and filament] of element
connection are selected in this model??
Thanks

Neil S.


Way too long ago for me, but I remember punching those buttons a lot.
bg I think the grid, filament plate are all controlled by the rotary
switches, iirc.