Ran the calculations and the offset is 3% high. The ovens running at 89 degrees C. Regards Paul WB8TSL On Sat, Mar 4, 2017 at 4:56 PM, paul swed <paulswedb@gmail.com> wrote: > Working with Frankenstein and those C fumes are getting mighty rare. > That said wanted to see what temp the ovens running at. As suggested here > there is a direct reading Tcouple in the C tube. > > Looking at the raw wire colors from the tube best guess is a T type > because the actual wire color is copper (-) and silver (+). Not J or K > types. Though I have some T Tcouples and raw wire color looks very close I > don't actually have a meter. > For the heck of it I did connect a K Tcouple meter to it with K wire > extensions. I know very bad and evil. Read 199 uncorrected degrees. > > Since the range of 200 F is a small part of the overall range perhaps the > offset deviation is not all that large. > > Uncorrected readings suggest 199 F or 91 C. At least not crazy off and I > am running the oven hotter since the tube was dead. This is a regular tube > not a 004 that as much as I can tell really are drained dead. > Regards > Paul > WB8TSL > > >