Part Number Z91R7 having (CAGE Code 71744) and FSC 5960 Electron Tubes and Associated Hardware in stock with ready to ship. Get an instant quote for Z91R7 Electron Tube by Chicago Miniature Lighting Llc. 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.