shadow meter adjustment - Printable Version

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+--- Thread: shadow meter adjustment (/showthread.php?tid=16642)

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shadow meter adjustment - doc612 - 05-11-2017

I am trying to adjust the shadow meter on an early 16B. I have read and reread Philco Repair Bench instructions on doing this but one question remains- how do I get hold of the dang coil to move it back and forth and rotate it? I had to take the bottom off just to get enough grip on it to prove to myself that it actually will move. Is there a tool that fits in the small slots on the side of the coil? Thanks folks,
Doc

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RE: shadow meter adjustment - Radioroslyn - 05-11-2017

I don't know that the coil can be moved. It's got a bracket over it that pretty much locks it in place. The only adj I've done is making sure the lamp is in the proper place. Maybe I'm missing something.

[Image: http://philcoradio.com/phorum/attachment.php?aid=11689]

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RE: shadow meter adjustment - morzh - 05-11-2017

I don't think the coil should be touched.
Why would you try to move it?

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RE: shadow meter adjustment - Radioroslyn - 05-11-2017

If you could move it you still can't change the position it sits above the vane, that's fixed.

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RE: shadow meter adjustment - Nathan Slingerland - 05-11-2017

The Philco Repair Bench instructions which mention rotating the coil are referring to the newer style of shadow meter found on 37-XXX and newer Philcos.

Your 16B (should) have the older 'box' style shadow meter with a coil like the one Terry posted - or see the same repair bench link. The only thing you can adjust there is the lamp position (gently bend the arm) - and possibly the filament orientation (rotate the bulb).

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