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DC Voltmeters
DC Voltmeters
Simpson
DC Voltmeters
These voltmeters were likely used in World War II aircrafts in the 1940's.
Donation: John & Carol Babina Jr.
![DC Voltmeters](http://www.westporttechmuseum.com/cdn/shop/products/PXL_20220930_214158476.jpg?v=1679354404&width=1445)
Simpson
DC Voltmeters
These voltmeters were likely used in World War II aircrafts in the 1940's.
Donation: John & Carol Babina Jr.