01-26-2010, 06:34 PM
Yes I had the smaller ball bearing as it had remained stuck into the congealed old grease. I also had the three larger bearings as they remained "glued" to the shaft holes by the same old grease. After a thorough cleaning I re-assembled the shaft with new white lithium grease. There was very little wear on the fine vernier shaft ball end.
I was amazed at how well this vernier system works without gears. The ball bearing system is actually smoother than any gear set and gives about a 4:1 reduction. Clever engineers working for Philco back then!
The radio I restored just prior to this 37-610 was a 38-89 which although it has 6 tubes I like the tuning system of the 610 much better.
Steve D
I was amazed at how well this vernier system works without gears. The ball bearing system is actually smoother than any gear set and gives about a 4:1 reduction. Clever engineers working for Philco back then!
The radio I restored just prior to this 37-610 was a 38-89 which although it has 6 tubes I like the tuning system of the 610 much better.
Steve D
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