On Tuesday, June 18, 2013 6:09:10 AM UTC-7, 4Z wrote:
I suspect that a repair I did recently on the TE probe on my DG 800B

didn't work. So it's time to get a replacement. My factory probe is

8mm but the end that fits into the receptacle has a small reduced

diameter section (4mm) that must fit into a reduced diameter hole

inside the receptacle. My previous gliders didn't have this smaller

section. So my question is, does any replacement probe have to have

this arrangement, or can I just plug in an 8mm probe if it seals

properly?. I'd like to get it right cause these things aren't cheap.

Thanks, Tim

These are two concentric tubes with different pressures in them, aren' they? Hence "double probe"? Mine has three concentric tubes, or a triple probe. Static, pitot, and suction. Depending on what is hooked up to what, putting a single tube in there might give you some interesting instrument readings....