Joined: Jan Thu 27, 2011 4:37 pm Posts: 182 Location: north carolina, USA
I recently purchased a new 6G5 tuning indicator "magic eye" tube for my hallicrafters SX-11 receiver as the old one was dim. I got to wondering about the life span of these type tubes and if I should buy another one to have for a spare while they're still available. Does anybody have any idea on how long these type tubes last before starting to go dim?
_________________ "Why don't you knock it off with them negative waves?"
All I cn tell you is that if you have your set in a dark room and only fire it up once a week for a couple of hours, you'll likely not need a spare. I have some test stuff with bulbs older than the hills that are still quite bright. If you do get a spare, keep it in the dark.
Joined: Jan Thu 01, 1970 1:00 am Posts: 28953 Location: Livermore, CA
It takes around 1000 hours of operation to notice green has dimmed.
Unusual to find a new 6G5. The 6G5 was often used in radios but most were replaced by 6U5, straight sided tube. Although some 6U5 tubes were marked 6U5/6G5 don't remember seeing new 6G5 (ST tubes).
