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In Reply to: RE: You are doing it again! posted by gusser on January 28, 2013 at 11:38:09
Try reading the material. You may learn something. But hell if I'm going to point out what was obvious in the references. If you think you know it all, fine with me.
Stu
Follow Ups:
That site has hundreds of pages of material in the form of old tube manuals. You expect me to read through all that?Why can't you just post a link to the page(s) where it states the ridges on octal tubes are for voltage leakage reduction? You must have read it there didn't you?
Why not just show it to us?
Or is this another false appeal to other authority?
Edits: 01/28/13
hints. I waded through significant amounts of the material he had and am thankful that Pete put it up.
I gave up spoon feeding babies decades ago.
You w\ant "proof", then do the research
You make an outlandish claim about tube base construction.
I challenge it.
You direct me to a site with hundreds of pages of old documentation and tell me it's in there but I have to find it myself.
You claim to know the information supporting your claim is there but won't share it with us?
Are you for real?
Repeat: I don't spoon feed babies anymore.
You have the site but don't want to read.
Too bad, you may learn something.
Stu, you are making a fool of yourself here.If you had solid documentation that the ridges on tube bases are for the purpose of voltage leakage you would have shoved it in my face 6 post's ago.
This "I read it but I'm not going to show it to you" is just silly. Anybody can see by now it's another phony claim of yours with absolutely no backing..
Edits: 01/28/13
...Eric Barbour discusses the ridges or "dams" in tube bases in his article on the 6550 and KT88 in issue #6 of Vacuum Tube Valley (winter, 1997). On page 22, column 3, paragraph 1 he states "Thanks to the large low-loss base with molded-in dams between the pins to discourage leakage currents, the 6550 was rated for 600 volts on the plate and 400 volts on the screen." I don't believe VTV back issues are on Millett's site and you may not consider Barbour an authority (he provides no references) but it's in writing and was published.
~!
The Mind has No Firewall~ U.S. Army War College.
forgot about that article, but Barbour did get it from elsewhere.Thanks again,
Stu
Edits: 01/30/13
No, I do consider Eric an authority and thanks for some valid documentation.
But I still question the effectiveness of 1/16in of additional distance. I know this can be calculated and perhaps has some advantage however small. I guess even 50 volts of additional capacity could be significant at 500 to 1000 volts.
It just seems to me that the barriers serve more of a structural purpose to support the center locating pin.
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