NEW OLD STOCK BOXED NATIONAL UNION GI-10 INDITRON FIRST GENERATION NIXIE TUBE

Description: NEW OLD STOCK BOXED NATIONAL UNION GI-10 INDITRON FIRST GENERATION NIXIE TUBE NEW OLD STOCK BOXED NATIONAL UNION GI-10 INDITRON FIRST GENERATION NIXIE TUBE Photos are the actual NATIONAL UNION GI-10 Nixie Tube 5 availableI have no way to test these tubes. All are new unused in the cartons. Since they are very rare and fragile being sold as untested and no returns or refunds. The GI-10 'Inditron' is an historical curiosity, a Nixie-style numerical indicator tube which was developed in parallel to the more successful Burroughs Nixie, and may actually predate the Burroughs Nixie by as much as a year. Beginning in 1954, National Union produced a small number of neon-filled indicator tubes which used bent wire cathodes to indicate a numeric value. The tubes had very short operational lifespans and were difficult to drive with the contemporaneous technology, which prevented widespread use and ultimately doomed the tube to failure in the market.The primary difference between a GI-10 and a Burroughs-style Nixie tube is the lack of an anode grid. With no anode grid, the GI-10 is rather difficult to drive; an adjacent cathode must be pulled high to start the glow discharge. The GI-10's wire numerals look quite different from the stamped metal numerals used in the Burroughs design, and are much more prone to failure. The unusual 10-pin base is designed to fit into a modified 9-pin socket with a metal bushing around the hole in the center. The long pin in the center of the tube protrudes down the hole, and a spring on the side of the pin engages the bushing, allowing a common 9-pin socket to function with a 10-pin tube. Buyer to add $6. shipping (USA). Sorry - no INTERNATIONAL shipping for this item QUESTIONS? please ask them before bidding. PAYMENT INFORMATION: You can either use the "PAY NOW" button at the end of the auction, or I'll send you an invoice. I try to ship most items within 2 business days of payment. eBay NOW REQUIRES A SIGNATURE UPON DELIVERY FOR ALL SHIPMENTS OVER $750.. INTERNATIONAL BIDDERS: I accept payments from International Bidders for amounts up to $250. For larger amounts, contact me. SELLING INFORMATION: I try to inspect most of the equipment I list for auction, and to describe each completely & carefully. However, since some of the items can be over 60 years old, all items are sold "as is". Almost every older electronic item will benefit from a careful alignment and cleaning or other restoration. Images may not be unique. Shipping charge may not include AK or HI Powered by SixBit's eCommerce Solution

Price: 149.99 USD

Location: Greer, South Carolina

End Time: 2024-11-07T23:09:33.000Z

Shipping Cost: 6 USD