[VAC] Re: Control panel tank levels

[Jim Dunmyer <jdunmyer@xxxxxxxxxxx>]

John,
 Isn't the idea of the Test Button to light all the lamps to verify
operation?

As far as the transistors/no transistors question, the water in the
holding tanks is probably much more conductive than fresh water, so
amplification isn't needed. I'd suspect that almost any NPN transistor
would work in that circuit.

                                    <<Jim>>