[Ron Ramirez]

So...after soaking the parts in ammonia for over an hour, I removed everything, rinsed the parts in hot water, and let them air dry. Then I returned them to the bench, and finished cleaning the pieces with denatured alcohol.

I could have just soaked the parts in denatured alcohol, I suppose...

...but anyway, the parts were now clean:

[Image: http://www.philcoradio.com/images/phorum/37640_075.jpg]

Reassembly was the reverse of disassembly. Only, I had to add a liberal amount of white lithium grease before reassembly.

The finished product:

[Image: http://www.philcoradio.com/images/phorum/37640_076.jpg]

[Image: http://www.philcoradio.com/images/phorum/37640_077.jpg]

Not only better looking, but much smoother now, and both inner and outer shafts easily rotate the tuning condenser without the knobs in place.

Interesting how the tuning condenser was rubber stamped 37-620. Well, the 37-640 uses the same RF unit as the 37-620 and 37-630.