[Boatanchors] Tube Tester

[Carl]

Jackson 648 of whichever Letter suffix suits your fancy. Its about the tops 
in the emission style tester design and there is a lot of info and tube 
settings on them. Its far better than a straight el cheapo emissions tester.

I picked up a 648S minus cover off Ebay for $40 last year, cleaned it up and 
gave to #2 son as a Christmas present. The S is a bit new probably for your 
needs as it came out near the end of tubes but tests all the way back to 
01A's era with available charts.

I made several comparison tests with my Hickok 752A and the 648S is 
amazingly close. If you search you'll find that the circuit changed very 
little over the years.

Carl
KM1H


----- Original Message ----- 
From: "Michael Tauson" <wh7hg.hi at gmail.com>
To: "arc5" <arc5 at mailman.qth.net>; "boatanchors" 
<boatanchors at mailman.qth.net>; "milsurplus" <milsurplus at mailman.qth.net>
Sent: Sunday, July 12, 2009 4:23 PM
Subject: [Boatanchors] Tube Tester


> It finally occured to me that having a tube tester might not be such a
> bad idea.  Before anyone says anything, I know I'm a little slow on
> the uptake sometimes.  In theory, something to cover everything from
> the UV, UX & UY type tubes on up to whatever's in the 618* rigs (or
> more recent) would be ubercool but I don't think it's going to happen,
> especially not with my budget.  On the other hand, I'm winding up in a
> world of older 4 & 5 pin tubes on up to WW II vintage (and a little
> beyond) including acorns and subminis.
>
> From what I can see, the I-177 will do what I want but it has a
> biggish fan club which makes it gold when put up for sale or on
> auction.  So, unless someone has one (working - I don't care what it
> looks like) for cheap, what I would like is suggestions for a tester
> that will do what I need but at a more managable price.
>
> BEst regards,
>
> Michael, WH7HG
> -- 
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki Nô!
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