5979 Jan End Window Geiger Tube For Military Radiation Detector Counter
New old stock ( never used ) JAN 5979 thin mica end window Geiger tube for military counter / detector 700 volt version.
Made by NRC to JAN military spec. ( any tube made with the same part 5979 by a number of makers has to have the same spec to meet JAN requirement )
Tested good tube will detect ALPHA,BETA,GAMMA,and X-RAY radiation.
I combine items when possable for shipping to the same buyer to save on shipping.