Lurking and Tempcos

[Scott Chicoine]

Thanks for the info, Harry (and PaulS and RoyT and RoryMcD).

I think I might try out your heater some time later, Harry, but I think I'll
just go with a tempco solution.  It's only one component and doesn't need
near the PCB real estate a properly controlled heater does.  Besides, Paul's
got 'em, so what the heck.  :)

About the "thermal mass":  I assume this is to keep the device from changing
temperature too rapidly, keeping the diff amp and the resistor from
heating/cooling at different rates?  I was planning on just making a little
clip from copper sheet that would go from under the CA3046, up and over the
side and along the top to end in a little curly-Q that I would stick the
tempco in, along with a small amount of thermal grease.  Kind of like a
paper clip.  I'm a little spooked at the idea of potting the thing, it's so
_permanent_.

-ScottC