div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails5jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails6jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails7jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=8Page 8button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails8jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails9jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=10Page 10button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=10 data-page=10 class=ts-thumb lazyload alt=Page 10: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails10jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=11Page 11button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=11 data-page=11 class=ts-thumb lazyload alt=Page 11: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails11jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=12Page 12button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=12 data-page=12 class=ts-thumb lazyload alt=Page 12: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails12jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=13Page 13button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=13 data-page=13 class=ts-thumb lazyload alt=Page 13: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails13jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=14Page 14button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=14 data-page=14 class=ts-thumb lazyload alt=Page 14: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails14jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=15Page 15button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=15 data-page=15 class=ts-thumb lazyload alt=Page 15: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails15jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=16Page 16button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=16 data-page=16 class=ts-thumb lazyload alt=Page 16: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails16jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=17Page 17button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=17 data-page=17 class=ts-thumb lazyload alt=Page 17: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails17jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=18Page 18button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=18 data-page=18 class=ts-thumb lazyload alt=Page 18: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails18jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=19Page 19button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=19 data-page=19 class=ts-thumb lazyload alt=Page 19: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails19jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=20Page 20button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=20 data-page=20 class=ts-thumb lazyload alt=Page 20: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails20jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=21Page 21button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=21 data-page=21 class=ts-thumb lazyload alt=Page 21: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails21jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=22Page 22button div class=ts-imageimg data-url=the-us-army-from-1917-to-about-1943-it-stands-for-vacuum-tube-numbers-in-thehtmlpage=22 data-page=22 class=ts-thumb lazyload alt=Page 22: WordPresscom · the US Army from 1917 to about 1943 it stands for Vacuum Tube Numbers in the three systems are totally unrelated Miscellaneous early British codes A selection loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220505035f95beb3827b134d7e0eacbchtml5thumbnails22jpg width=140 height=200 divdiv
