16-06-2015, 05:03 PM
In a previous post Mark said ... " but I suspect that changes in contact area between the carbon granules is a factor as well. I could well imagine that happens after the initial compression during manufacturer - one theory suggests that the granules "relax" slightly, and I could understand that heat could contribute to this in service."
Still working on a completely stripped Philips Monoknob and the interesting thing, and related to the above, that the cable driven potentiometers all go miles high being typically three times that specified (for example a 600K that measures 1M6. With use of WD40 this increases to 1M8).
I have 'collected' two other chassis (different models) and they are the same, of course all pretty well worn out.
Gary
Still working on a completely stripped Philips Monoknob and the interesting thing, and related to the above, that the cable driven potentiometers all go miles high being typically three times that specified (for example a 600K that measures 1M6. With use of WD40 this increases to 1M8).
I have 'collected' two other chassis (different models) and they are the same, of course all pretty well worn out.
Gary
