Keyword Analysis & Research: vacuum tubes were used in which generation

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
vacuum tubes were used in which generation	0.74	0.8	7051	48	42
vacuum	0.05	0.9	8557	99	6
tubes	1.73	0.4	9799	35	5
were	0.18	0.1	3916	12	4
used	0.55	0.1	3544	68	4
in	0.48	1	9209	33	2
which	1.21	0.7	2261	11	5
generation	0.01	0.8	7330	37	10

Keyword	CPC	PCC	Volume	Score
vacuum tubes were used in which generation	1.91	0.8	8297	92