Averagesupernova's latest activity
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Averagesupernova replied to the thread Piston suction pump versus external gear pump as vacuum pump.And back to my reply that the question is not answerable with any degree of reliability. - Example: I have a very large vessel to... -
Averagesupernova replied to the thread Piston suction pump versus external gear pump as vacuum pump.Pick them to do what? Many pertinent questions were asked and you have not answered. I suspect you don't really know what you need. You... -
Averagesupernova replied to the thread Is it dangerous if there is a mains fault on a potable water pipe?.This still could trip an RCD depending on the path of the current on the water pipe. The pipe from the house to the shutoff valve may be... -
Averagesupernova replied to the thread Piston suction pump versus external gear pump as vacuum pump.Rotary lobe pumps typically used as superchargers have similarities to gear pumps. They are mostly used for non-liquids. I guess it... -
Averagesupernova replied to the thread High School Audio frequency of a humidifier.Don't be so certain that the 1000 Hz that you hear is actually there. I've mentioned before on PF that the ear is non-linear and can... -
Averagesupernova replied to the thread High School Audio frequency of a humidifier.Yeah that would drive me nuts. What are you seeing the peak at 1KHz with? Have you downloaded Audacity and looked at the spectrum of... -
Averagesupernova reacted to Dullard's post in the thread Hydraulic Cylinder Held In Place Until Needed with
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If I were using a winch with a guillotine device on the cable, I'd want to be absolutely, positively certain that the device had not... -
Averagesupernova replied to the thread Hydraulic Cylinder Held In Place Until Needed.Even the piping has some stretch. Also, what about all the way back to the pump? Curious about how this project is coming. -
Averagesupernova reacted to NTL2009's post in the thread Beauty of old electrical and measuring things, etc. with
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But as mentioned above, tubes are desired not just by some audiophiles, but also for guitar amplifiers. Most electric guitarists use... -
Averagesupernova replied to the thread Wait 24 hours before powering up A/C or fridge?.I've always heard that if laid down on its side to turn it upright and wait the same amount of time that it was laid over. Of course... -
Averagesupernova replied to the thread Hydraulic Cylinder Held In Place Until Needed.Agreed. It is very difficult to prevent 'wind-up' in hydraulics. If you've ever seen a hydraulic hose fail under pressure it's somewhat... -
Averagesupernova replied to the thread Hydraulic Cylinder Held In Place Until Needed.Ok. Depending on the system, sometimes the return can have a slight pressure. Don't be too sure that the main return doesn't have some... -
Averagesupernova replied to the thread Hydraulic Cylinder Held In Place Until Needed.If you've ever used a hydraulic press you will realize that about when you are ready to give up thinking the 20 ton bottle jack can't... -
Averagesupernova replied to the thread Hydraulic Cylinder Held In Place Until Needed.My guess it is to prevent drift. There is likely a controlled small leak (bypass) that returns to the reservoir. When the time comes for...