Re: AVO Model 40 Multimeter
The 1k and 10k range resistors are connected to the appropriate switch positions. The 100k range resistor is, from memory, a bobbin type fixed to the battery box. Check the values of these resistors against the circuit diagram. It is common to find these resistors burnt out, possibly by someone inadvertently trying to measure the resistance of an AC supply...
It is worth examining and cleaning the leaf switch contacts. These are operated by cams behind the range switches and can be responsible for all manner of strange faults.
__________________
Phil
Optimist [n]: One who is not in possession of the full facts
|