Part Number QC E 1 1289 having (CAGE Code 08125) and FSC 5960 Electron Tubes and Associated Hardware in stock with ready to ship. Get an instant quote for QC E 1 1289 Electron Tube by U S Department Of The Interior Bureau Of Mines. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.