Early Double-Ended Vacuum Tube Apparatus

Updated September 23, 2026

This auction ended on September 26, 2026. See upcoming auctions from Donley Auctions.
Lot number1281
Estimate$80 - $1,000
Opening bid$25
AuctionInventions and Technology Auction
DateSeptember 26, 2026 at 9:00 AM CDT
Auction houseDonley Auctions
LocationUnion, Illinois

This early experimental glass vacuum tube is a rare surviving artifact of early 20th-century wireless telegraphy ...

Early Double-Ended Vacuum Tube ApparatusEarly Double-Ended Vacuum Tube ApparatusEarly Double-Ended Vacuum Tube ApparatusEarly Double-Ended Vacuum Tube ApparatusEarly Double-Ended Vacuum Tube Apparatus

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