Quote:
Originally Posted by SiriusHardware
Freezer spray made for the purpose of diagnosing thermal electronic faults is usually quite expensive but if you take a look at this thread, someone has just discovered more or less the same product being sold for an entirely different purpose, and much more cheaply.
https://vintage-radio.net/forum/showthread.php?t=164937
If you can bring yourself to buy some of that, that should work quite well for the purpose.
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Just be careful not to buy freeze cracker spray for removing bolts - it contains release oil that will remain on your circuit and possibly lift off solder.mask or screen printing! Its aboult half the price of "proper" freeze spray.