[ARC5] A little off-topic: Metal tubes (eg 6SJ7) seem quite valuable ...

[scottjohnson1]

Not true, unless it is MG (metal- glass) tube.  The rust is just cosmetic.Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: William Cromwell <wrcromwell at gmail.com> Date: 9/15/21  11:58 AM  (GMT-07:00) To: arc5 at mailman.qth.net Subject: Re: [ARC5] A little off-topic: Metal tubes (eg 6SJ7) seem quite
  valuable ... Hi,A coupla things.I have used rusty tubes as-is successfully. Your mileage may vary.I have been lead to believe that inside that metal shell is a glass tube. The vacuum is not dependent on the integrity of the metal shell. Naybe somebody has contradictory information with citations.73,Bill KU8Hbark less - wag moreOn 9/15/21 2:10 PM, Leslie Smith wrote:> A link: https://www.ebay.com.au/itm/283973399609 > <https://www.ebay.com.au/itm/283973399609>>> Makes the idea of polishing rusty tubes worth-while.>> Leslie>> ______________________________________________________________> ARC5 mailing list> Home: http://mailman.qth.net/mailman/listinfo/arc5> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:ARC5 at mailman.qth.net>> This list hosted by: http://www.qsl.net> Please help support this email list: https://www.qsl.net/donate.html______________________________________________________________ARC5 mailing listHome: http://mailman.qth.net/mailman/listinfo/arc5Help: http://mailman.qth.net/mmfaq.htmPost: mailto:ARC5 at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: https://www.qsl.net/donate.html
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