m3t00🌎@lemmy.world to Technology@lemmy.worldEnglish · edit-21 year agotube testerlemmy.worldimagemessage-square38fedilinkarrow-up1401arrow-down14file-text
arrow-up1397arrow-down1imagetube testerlemmy.worldm3t00🌎@lemmy.world to Technology@lemmy.worldEnglish · edit-21 year agomessage-square38fedilinkfile-text
minus-squarem3t00🌎@lemmy.worldOPlinkfedilinkEnglisharrow-up4·1 year agohaven’t seen one in use for at least 20 years. 60, 70s mainly much smaller now. https://www.amazon.com/s?k=tube+tester
haven’t seen one in use for at least 20 years. 60, 70s mainly
much smaller now. https://www.amazon.com/s?k=tube+tester