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Ancient Geek · 16th May 2018, 9:24 pm

I'm working on a Ferguson midget valve set and checking the resistors. The attached image shows a portion of the schematic. As you can see, the two resistors R8 and R9, and the volume pot R10 are connected together. Without unsoldering any joints I made the following measurements:

Across R8: 926K
Across R9: 770K
Across R10: 443K

Assuming no influence of any other components on the measured values, what are the actual component values to the nearest 1K ? It took me a little while to figure it out...

16th May 2018, 9:24 pm	#1
Ancient Geek Retired Dormant Member Join Date: Aug 2017 Location: Bristol, UK. Posts: 136	Resistor puzzle I'm working on a Ferguson midget valve set and checking the resistors. The attached image shows a portion of the schematic. As you can see, the two resistors R8 and R9, and the volume pot R10 are connected together. Without unsoldering any joints I made the following measurements: Across R8: 926K Across R9: 770K Across R10: 443K Assuming no influence of any other components on the measured values, what are the actual component values to the nearest 1K ? It took me a little while to figure it out... Attached Thumbnails