folks:
This is a memory Jogger, now:
Waaaayyyy Back at the Navy School Radio Club statioin, K6LY, I remember
seeing some (smaller, possibly 8122 size) mil spec external anode tubes, NOS
in our "Junk Box". The tubes were packed in some OD green cans, about the
size of a can of olives, that had a pop tab, a pull on which cracked the
seal of the top which was pealed off, and when I popped one open there was a
powerful pop-hiss of the vacuum being broken/Filled inside the can.
Is an outer package for transmitting tubes that has a moderate vacuum
applied, an effective way to preserve tubes from damage due to slow leakage
around the Plate/electrode seals? Can you put your 3-500Z or other tubes in
storage in a jar, and using some home type of vacuum source, moderately
evacuate/seal the container, and get extended life from the tube inside?
Sincerely, Pat Barthelow aa6eg@hotmail.com
http://www.jamesburgdish.org
Jamesburg Earth Station Moon Bounce Team
http://www.cq-vhf.com
>From: "sulai je" <7z1sj@jeeran.com>
>Reply-To: 7z1sj@jeeran.com
>To: <amps@contesting.com>
>Subject: [Amps] Project for 8122 tubes
>Date: Tue, 14 Aug 2007 13:03:08 +0300
>
>
>Hello
>I had some RCA 8122 tubes in my junk box since long time. Thinking to use
>them in a homebrew project so I start to search for an amplifier project!
>Either to UHF or VHF . HF Googling the net yields a zero project for those
>tubes.
>
>if any on can help with schematic and more info I will be appreciated in
>advance .
>73s de 7z1sj Sulaiman
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