[Sourbone]

Hello:

I'm working on a model 37-60. I'm wondering if there was perhaps a production change with resistor 19. All the literature says it should be 9K and 2 watts. What is in place is a 30K, 2 watt dog bone resistor. It looks original. There are some other elements that are slightly different. I was wondering if there were any changes in production. 

Thanks, 

Dave

[codefox1]

schematic here: http://www.nostalgiaair.org/PagesByModel...013205.pdf

I'd stick with the value of R19 found in the set, provided it is original, and measures the same as indicated on the part; probably wouldn't make much of a difference in this case - certainly not a show stopper. From what I've seen, minor changes were made all the time depending on what parts were on hand, or to improve reliability/performance, and documentation for non critical stuff just wasn't done with regularity.