[morzh]

Gosh. I always re-discovered how to do it, took me 2-3 minutes every time.
Now that I think of it, the c-clip is there but has nothing to do with taking this apart.
I think you just push that sprocket agaisnt a piece of wood, and it just comes out. You have to push the shaft (the tuning end where the knob goes on) in a bit before pushing the sprocket.
I hope so.

I also found this

https://philcoradio.com/repairbench/tips/svctip39.htm

[HowardWoodard]

Oh... That link is gold man! Thank you so much.

I'll see if I can get this thing fixed and will post the results on this thread.

[462ron]

Hi Howard, if memory serves, and many times it doesn’t, I vaguely remember working on a Philco that had that pin you have circled in yellow with a question mark. I believe I used a magnet to extract that pin to disassemble that mechanism!

Ron

[HowardWoodard]

Thanks 462ron. I have it soaking right now but will test the power of my shop light magnet on the pin when it comes out.

[morzh]

The gear on the 37-604 is exact same, but there was no pin.
The pin exists on the gear of 37-116 or those ones with robo-dial from this and the next year. But those are different gears.
As I remember, the technique was nocking the pin out. I forgot how I got it out.
I am sure a Philco doc should exist on thie gear, same as it does for the 37-116 robodial. Which BTW does have the technique for getting the pin out, and we do have that doc in our library somewhere.