[37-670]

According to a photocopy of the owner's manual I have for my 37-670, the shadow meter supposedly is user adjustable. The only thing I can see that could possibly be adjusted is a knurled plastic piece that also serves as the back of the coil, in front of the lamp assembly. This does not move with gentle pressure and I am afraid to exert force in case I'm barking up the wrong tree here. Can anyone help?

[Ron Ramirez]

Yes, that is the actual coil, and it can be moved. It may be stuck after decades of not being moved, so proceed carefully.

Details here:
http://www.philcorepairbench.com/tips/svctip01.htm

[37-670]

Thanks,Ron! I started to gently rock the coil back and forth, and sure enough it moved -- albeit very stiffly. When I eventually get the radio together and back in the cabinet I'll be able to adjust the shadow -- assuming the coil isn't open.
I really appreciate the help.
Eric Strasen