Hoffman Amplifiers Tube Amplifier Forum
Other Stuff => Other Topics => Topic started by: John on August 02, 2017, 05:22:22 am
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https://www.ehx.com/tubefactory (https://www.ehx.com/tubefactory)
Cool video, I thought.
*edit* sorry about that! I have to check and see if I posted the tube video on the football forum.
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Not seeing any ehx video?
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Oops! Fixed.
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Cool Video. Lots of little parts.
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yeah, suddenly $50 for a pair of tubes seems pretty cheap.
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Thanks for sharing...very cool!
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Many steps skipped in that video.
Here's more. It's old and UK, but the techniques and often the machinery is the same.
! No longer available (http://www.youtube.com/watch?v=GDvF89Bh27Y#)
A bit annoyed how the Saratov plant has hands all over the parts. Yes they are acid-washed and vacuum-boiled at final assembly. But late Mullard Blackburn had no hands on the parts, all automated or indirect handling.
Here's a guy hand-making tubes. Slow so you can see. Nixies, but many of the steps are the same.
https://www.youtube.com/watch?v=wxL4ElboiuA (https://www.youtube.com/watch?v=wxL4ElboiuA)
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Wow, no OSHA in Russia. Kick presses are one thing but powered presses would require two hand palm buttons, light curtains, barriers, and placement tools here in the USA. I'm surprised I didn't see the old yank back wrist straps at least. There may be some employees over there missing a digit or two, or with unintended piercings.
Those flame indexing wheels require some long term expertise. A fuse company I worked for had many of those for certain cartridge fuse assembly processes and in the UK for large glass tube fuses (~12"). Only the older employees with thousands of hours on the machine could tweak it to run right. Did you notice the employee adjusting the flame nozzles? A constant battle with varying gas pressures and materials. Another case of $10 to show up and $10,000 to show you where to kick it!
Cool stuff!
Jim