3 ms·
apparently there is: https://en.wikipedia.org/wiki/Vacuum_tube#Vacuum_tubes_in_the_21st_century https://en.wikipedia.org/wiki/Vacuum_tube#Vacuum_tubes_in_th...
by jlg23 6y ago
apparently there is: https://en.wikipedia.org/wiki/Vacuum_tube#Vacuum_tubes_in_the_21st_century https://en.wikipedia.org/wiki/Vacuum_tube#Vacuum_tubes_in_th...