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Hydrogen Air Fuel Cell Demonstrator

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:200.00 - 400.00 USD
Hydrogen Air Fuel Cell Demonstrator

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Auction Date:2019 Jun 12 @ 18:00 (UTC-5 : EST/CDT)
Location:15th Floor WeWork, Boston, Massachusetts, 02108, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
Vintage "Hydrogen Air-Fuel Cell" demonstrator box made by Electro-Optical Systems of Pasadena, California, measuring 5.25? x 7.75? x 3.5?, featuring an air cathode (porous nickel with platinum black catalyst), electrolyte (potassium hydroxide impregnated in a matrix of sheet asbestos), and anode (Raney nickel), mounted together on a wooden base. Includes a typed sheet describing the hardware, potential performance, operating voltage, and other specifications. In fine condition.