Just for interest,
Cryogenic Experiments on Passive and Active Electronic Components | The Signal Path
Its interesting to see the effect of cold on components..from a function point of view.
I thought it was interesting, since looking at this I have seen sites advertising everything from valves to guitar pick ups with Cryo treatment.
EG I have no connection..
http://www.frozensolid.co.uk/audio/
Even a cryoed EF86 now that would be interesting if its less microphonic..
Regards
M. Gregg
Cryogenic Experiments on Passive and Active Electronic Components | The Signal Path
Its interesting to see the effect of cold on components..from a function point of view.
I thought it was interesting, since looking at this I have seen sites advertising everything from valves to guitar pick ups with Cryo treatment.
EG I have no connection..
http://www.frozensolid.co.uk/audio/
Even a cryoed EF86 now that would be interesting if its less microphonic..
Regards
M. Gregg
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Interesting. Of course what we are interested in is if/how things change, if immersed for a significant time, when the component returns to room temperature.
dave
dave
What about damage to solder joints, etc. from the thermal effects?
Electrolytic capacitors could also be a problem.
The big damage potential is glass to metal, ceramic to metal, epoxy to metal. Seems like a good tradeoff to me.😀
^ Funny what happens when you freeze out all your carriers.
As has been noted already, packages aren't designed for these temperatures. CTE is a real thing, as are any lattice/sublattice/domain effects of cryogenic "treatment".
As has been noted already, packages aren't designed for these temperatures. CTE is a real thing, as are any lattice/sublattice/domain effects of cryogenic "treatment".
I once worked in a lab where liquid nitrogen was used. For fun, I’d wrap a string around a hot dog, submerse it in the nitrogen for about twenty seconds, pull it out, lay it on the table and hit it with a hammer and watch it shatter. For an encore, I’d cut a 3” triangle from an old inner tube, submerse it, and then hammer it part way into a piece of a 2 X4 lumber. After it thawed, I'd let it lay around for comments. 😀
A friend of mine work with a NMR spectrometer (his own design), as the signal is very very weak it is needed ultra low noise AF/RF preamps, so when a design reaches some noise limit, he put the PCB into a sealed box filled with liquid air, almost the same temperature than liquid nitrogen, but more cheap.
The results are amazingly good, and nothing goes wrong with the PCB, brute force sometimes works. 😀
The results are amazingly good, and nothing goes wrong with the PCB, brute force sometimes works. 😀
Liquid CO2 exists. Not at atmospheric pressure, but still... Supercritical CO2 is a remarkably penetrating solvent.
^ I was going to say, isn't that one of the methods they use to make decaf coffee? The caffeine is particularly soluble in liquid CO2
You can use either.
Some smoke machines use liquid in bottles, others use solid (dry ice).
For a haze one would use mineral oil dispersed by compressed liquid CO2.
Those are the ones that make the light beams visible without producing 'smoke'.
Very popular with touring music acts.
We usually used these and glykol-based smoke machines.
Some smoke machines use liquid in bottles, others use solid (dry ice).
For a haze one would use mineral oil dispersed by compressed liquid CO2.
Those are the ones that make the light beams visible without producing 'smoke'.
Very popular with touring music acts.
We usually used these and glykol-based smoke machines.
I thought maybe the pressure was not practical to maintain for the board crushing apparatus, kinda made no sense on the spur of the moment.
As to the question of cryogenic- treating, isn't there rather more to the process than just shock immersion in the super cooled liquid?
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