On 11/23/2016 01:57 PM, Al Kossow wrote:
"noise 48dB, speed 5000 RPM"
Don't be in the same room with these for long
Papst is a good brand, though.
Weird Stuff had some 6" metal 110v ones for $10/ea so I bought a
bunch to replace all the sleeve bearing ones that have been seizing
up in my tape oven.
Hmmm--in my oven there's a low-speed 6" blade type fan that merely
serves to keep the air moving. It's a sealed insulated box heated by a
single 75W incandescent bulb. With a PID controller, the temperature is
very, very stable and you can't hear the thing in operation in most
environments.
--Chuck