Damn! Everytime I think I have everything, someone has to
show me something like this video to make me realize I
need to live another hundred years to be able to do all
the things I want to do.
In addition to a very complete machine shop he appears to
have a professional glassblowing laboratory, and a
knowledge of electronics. Plus, he speaks French!
Sigh! How I am going to explain that I need a glassblowing
laboratory to my wife?
PS Clearly, if he can make a vacuum tube he can adapt a
pen to fit a plotter. I don't think it took him more than
a minute to figure out how to do that. The only question I
have is whether he thought about making the holder out of
blown glass or out of machined metal. He probably could
have done either.
From: Daniel Koller, Sent: Tuesday, December 31, 2013 7:03
Chuck is correct. The relevant footage is near the end of
the video where he tests the tube. Link is here in case
Yahoo lost it for you:
Just a lathe? There were little "wings" on the pens that
twist-lock into the holders. I supposed I could start with
a rectangular piece of stock and turn all but the wings.
Anyone have one of these little pen adapters?
On Tuesday, December 31, 2013 9:21 AM, Chuck Harris
>He is referring to the little video on the making of a
>in Paillard's home shop. In the video he draws the
>the new triode using a home made manual curve tracer,
>HP flat bed plotter. I think the pen is not a ball
>rather a felt tip, or roller ball pen. HP used to make
>to the old Flair (tm) style... an easy job if you have
>> --- In TekScopes@..., Daniel Koller
>>> Of relevance to the HP group, did anyone
notice Paillard is using a standard
>>> ball point pen in a vintage HP plotter? Â
Nice trick. Â In fact, all very
>>> nicely done!
>>> Â Dan
>> Interesting !! Where did you find that ?? A quick
web browsing does not show me
>> anything useful ?? Thanks