Pam 183 Crown Tube Replacement

[ajoesmith]

Hi all

Well my PAM 183 crown threads have finally gone. The crown was hanging on just thread for ages and now its gone

Ive just received the Davidsen replacement but i cant figure out how to remove the old crown tube from the case

Has anyone done this and can shed some light on it

Any help is much appreciated

Thanks

Joe

[chris5264]

I've done this a few times. It is pretty easy since the old one is useless, I take a pair of pliers and just move it back and forth a few times and you should feel give, these are not screwed in like some. To put the new one in, I put it in place and just press the case really hard with the case tube on a table, you will feel it "click" into place. Make sure the movement has been removed. good luck.

[aeroguy]

I've done this a few times. It is pretty easy since the old one is useless, I take a pair of pliers and just move it back and forth a few times and you should feel give, these are not screwed in like some. To put the new one in, I put it in place and just press the case really hard with the case tube on a table, you will feel it "click" into place. Make sure the movement has been removed. good luck.

Where does one get the "Davidsen" replacement?

[chris5264]

Look under the "accessory dealers", it has all of Davidsen's items.

[geo1nah2a]

Sorry for bringing this back from the dead, but I don't like starting completely new threads:

I am interested in replacing the crown tube of my almost striped 183. I am thinking of ordering the tube from cousinsuk.com since I have already an order pending. Anybody has measurements for the tube?

Chris5264, since you have received and placed yourself more than one, is there any chance you can help me out? I am thinking of keeping the existing crown, and using only the tube. I know I could measure it myself, but I am trying not to destroy the 183 old tube before I get the new one.

And, is there anyone with a measurement of the sapphire of the 183? I was thinking of changing mine to a higher domed one.