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    Re: Kollsman types clearup?
    From: Joe Wong
    Date: 2022 Jun 11, 20:39 -0700

    Hi Eric, also been doing a complete overhaul to my Kollsman,here's my bubble chamber after a repair and also a refill. Mine has a leaked bellow which cost me quite some effort to patch.  

    As for the liquid, I have tested both aviation fuel and the 0.65 CST silicone fluid as per Arthur has suggest in his article, both work well, bubble responds to even a slightest tilt. I would say that any liquid with a very low viscosity would do the job. 

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