m3t00🌎 to Technology@lemmy.worldEnglish • edit-21 year agotube testerlemmy.worldimagemessage-square21fedilinkarrow-up1328arrow-down14file-text
arrow-up1324arrow-down1imagetube testerlemmy.worldm3t00🌎 to Technology@lemmy.worldEnglish • edit-21 year agomessage-square21fedilinkfile-text
minus-squarem3t00🌎OPlinkfedilinkEnglish3•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