01-31-2011, 06:32 PM
Sigh, I was afraid of that.
I've read over your great shadowmeter repair tips a couple of times, Chuck, but this one seems completely different.
The other ones seem to use a permanent magnet for centering. This one doesn't seem to have any such magnet (or even anything which may at one time have been magnetized). But the adjustment screw arrangement, to me, points at a spring centering mechanism.
I guess I will take it apart the rest of the way to see if there is anything which looks magnet-like. If not, i think i have a spring in my pinball parts collection which might be pressed into duty as a replacement. though it seems like it would have to be a very light spring. I suppose it is also possible the leaf spring which is there was just connected to the vane via a string...
On the other hand maybe i could retrofit a magnetic centering mechanism. hrm.
This is a '36. But i'm not sure when it was built. And i'm not sure if the meter is original. Though there isn't any obvious evidence that it isn't.
I've read over your great shadowmeter repair tips a couple of times, Chuck, but this one seems completely different.
The other ones seem to use a permanent magnet for centering. This one doesn't seem to have any such magnet (or even anything which may at one time have been magnetized). But the adjustment screw arrangement, to me, points at a spring centering mechanism.
I guess I will take it apart the rest of the way to see if there is anything which looks magnet-like. If not, i think i have a spring in my pinball parts collection which might be pressed into duty as a replacement. though it seems like it would have to be a very light spring. I suppose it is also possible the leaf spring which is there was just connected to the vane via a string...
On the other hand maybe i could retrofit a magnetic centering mechanism. hrm.
This is a '36. But i'm not sure when it was built. And i'm not sure if the meter is original. Though there isn't any obvious evidence that it isn't.
