[Milsurplus] PU-18/A ???

[Mike Hanz]

Unfortunately, it's a function of the centrifugal blower in the end of 
the inverter.  It resembles the business end of a siren.  Very efficient 
at moving air, but also efficient at creating an amazing level of 
acoustic irritation....

 - Mike

David Stinson wrote:

>>The PU-18/a is a 28 VDC input 'screaming mimi' with an 800 Hz 115 VAC output.
>>
>>Wonder if you could turn the inverter with an external AC motor and
>>avoid the screaming?
>>