12-12-2022, 11:10 PM
Radioroslyn- Thanks for the photo and response and I agree with you completely about not having multiple receivers apart at
the same time. The tuning mechanism you show in the picture looks exactly like mine but the bearing balls I need to find a place for are behind the oblong steel piece near the center of the image. Looking at my picture of the disassembled parts, it's actually the three large bearing balls that go on the end of the (steel) vernier shaft- the little bearing balls ride in the groove visible on the brass coarse-tuning shaft. I might be wrong about Philco never publishing info about this mechanism since the brass
bushing and its knurled locking ring seem to invite repairmen to dial in the bearing preload they want and Philco would probably
not assume everybody would understand this without instruction.
-Dave
the same time. The tuning mechanism you show in the picture looks exactly like mine but the bearing balls I need to find a place for are behind the oblong steel piece near the center of the image. Looking at my picture of the disassembled parts, it's actually the three large bearing balls that go on the end of the (steel) vernier shaft- the little bearing balls ride in the groove visible on the brass coarse-tuning shaft. I might be wrong about Philco never publishing info about this mechanism since the brass
bushing and its knurled locking ring seem to invite repairmen to dial in the bearing preload they want and Philco would probably
not assume everybody would understand this without instruction.
-Dave
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
