[ARC5] Resistor Excursions

[releazer at earthlink.net]

I think we all know how carbon resistors can increase in resistance over time, even when they are not even in use.  I have been working on a BC-348-N that is fairly original.  I was trying to figure out how the filaments had been rewired to 6.3V and while I was at it checked the value of some resistors.  The one that really surprised me was the 15K one that measured at 28.8K.  I thought perhaps that was an error in the manual but found that even the 1957 manual update still showed it as 15K.  And yes, I have checked my VOM for accuracy in the Ohms range.  I have been soldering modern resistors in parallel with them, which is much easier than trying to remove the old ones.

Wayne
WB5WSV