11. It consisted of over 4000 electron tubes and used 100 dials and 6000 plug-in connectors to program. 12. This was a dual-gun electron tube . 13. A VVA is a direct mathematical reconstruction of the same signal passing through a physical electron tube amplifier. 14. In 1933, Brimar was established to manufacture American-pattern electron tubes at Foots Cray, adjacent to the Kolster-Brandes factory. 15. In 1947 she electron tubes " ); her published works were accepted in lieu of a habilitation thesis. 16. Micro-dynamics Inc . of Woburn won a $ 123, 380 contract from the Navy in Mechanicsburg for electron tubes . 17. Litton Systems Inc . of Williamsport won a $ 421, 400 contract from the Navy in Philadelphia for electron tubes . 18. Litton Systems Inc . of Williamsport won a $ 148, 500 contract from the Navy in Philadelphia for electron tubes . 19. Litton Systems Inc . of Williamsport won a $ 302, 500 contract from the Navy in Mechanicsburg for electron tubes . 20. Litton Systems Inc . of Williamsport won a $ 302, 500 contract from the Navy in Mechanicsburg for an electron tube .
