[Boatanchors] ballast tube maybe?

[Gerry Steffens]

I checked further.  Nothing in the referenced material comes near matching
the units I have here.  All three are the same, the only connection is about
36 ohms cold between pins 3 & 7.  Two are Triad and stamped into the metal
10A.  The TRIAD is also stamped into the metal.  The third has only the 10A.
The TRIADs have a band of knurling stamped around the cylinder near the top.

I too am certain they must be ballast tubes of some sort.

Gerry

  

-----Original Message-----
From: boatanchors-bounces at mailman.qth.net
[mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of Al Klase
Sent: Tuesday, May 03, 2011 11:47 PM
To: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] ballast tube maybe?

Gerry,

Almost certainly a ballast.  I'm confused about part numbers.  Go here 
and see if it has the same resistances as a Clarostat 10-23-A.
http://bama.edebris.com/manuals/clarosta/

And here:  http://www.audiophool.cjb.net/Misc/Claro_46.djvu

Al

On 5/3/2011 11:11 PM, Gerry Steffens wrote:
> In going through boxes of tubes I have come across several tube-like
devices
> that look like tall metal tubes with octal bases.  I suspect they are
> ballast tubes.  Each is stamped with a notation 10A.  They are physically
> lighter in weight than similar sized tubes.
>
> Any thoughts on what they are?
>
> Gerry
>
>
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

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