Did altitude just blow out 2 MPS's?, Put the in my checked baggage...now won't hold vac. Options

[FlacaProductions]

Brought two of my 3 MPS back to L.A. from Indiana while I await the arrival of my LCR55A so that I could do some bench plotting and tuning only to find that neither one of the now holds any sort of a vacuum.

Both ran fine in the car before flight - just needed some adjustment. One has the factory plug replaced with a Tangerine model - the other is still factory sealed.

Did being in the unpressurized cargo area in my checked baggage blow them both?

That would really stink....

Brian

[rjames]

If the diaphragm isn't cracked and the seals are good, it should still hold vacuum. That doesn't speak to the condition of the cells though.

I once brought a sealed bottle of tequila with me on a flight to Japan. It was in my carry on. It was sealed with a cork that was wrapped in plastic. Halfway through the flight I reached into my carry on bag to find it soaked because the cork had lossened and broke the seal during the ascent.