[Boatanchors] unknown octal device

[J. Forster]

OK. Probably not a transformer then.

-John

==========


> The devices feel lighter or about the same as a tube.
>
> The only cold DC resistance I find between the five pins is 35 ohms
> between
> pins 2 & 6.
>
> I will attempt to get my Cannon back from my son and post a pic.  However,
> I
> am quite sure they are ballasts.
>
> The appearance is similar to an old GE ? black metal tube that had three
> diameters, each being smaller as one traverses from the base to the top
> (the
> base-widest, the main part of the tube somewhat smaller in diameter and a
> small portion at the top which is about a 1/4 inch less in diameter that
> the
> main part).
>
> The device is different having only two different diameters.  The first is
> the base & main part of the device are all the same diameter, the diameter
> of the octal base, and totally about 2 & 3/4 inches tall.  Then the "cap"
> is
> about 1/4 inch less in diameter and about 1/4 inch in height.  The device
> is
> about 3 inches tall, not counting the pins.
>
> Thanks,
> Gerry
>
>
>
>
>
>
> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net
> [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of J. Forster
> Sent: Tuesday, January 17, 2012 1:34 PM
> To: Gerry Steffens
> Cc: 'Boatanchors-qth'
> Subject: Re: [Boatanchors] unknown octal device
>
> Triad made transformers. They sound similar to the UTC Ouncer line. Are
> they
> significantly heavier than a tube would be? If so, they could well be a
> Lint-to-Grid ot Plate-to-Line transformer.
>
> -John
>
> ================
>
>
>> While going through and cataloging my tube supply I came across three
>> identical devices I cannot identify.  I assume they are ballast tubes.
>> Are
>> they?
>>
>> They are black metal cylinders about 1.375 inches in diameter and
>> about 3 inches tall with effectively an octal tube base on one end
>> with 5 pins and a with a small narrowing of the cylinder to a lesser
>> diameter for the last quarter of an inch at the top or other end.
>> They are marked (actually stamped into the metal) TRIAD with 10A below
>> the name.  There is a 3/8 inch wide band of knurling around the
>> cylinder about 3/4 inch down from the top.
>>
>> I have executed quite a few Google searches in attempting to ID these
>> things.  Everything TRIAD comes up with fluorescent light ballasts.
>> Also checked out the Playthings of the Past website's Ballast Tube
>> listings - no 10A and no mention of TRIAD.
>>
>> Anyone have an idea what these critters are or who might need (or
>> want) them?  Since they don't appear to be gold, platinum or silver
>> they are probably available for postage, 'cause I really don't suspect
>> they are like that Picasso painting I had always hoped to find stashed
>> in a house I bought.  But, I really hate to toss out stuff that
>> someone might be looking for to do restorations.  I think I have had
>> them for 50 or more years.  I believe they arrived in some boxes of
>> stuff given away when the Jamestown, North Dakota Ham club went
>> inactive back in the early 1960s.  Besides, dragging them across a
>> number of states over the years, I suspect they are tired of hiding
>> and might appreciate a good home where they are needed or wanted.
>>
>> Cheers,
>>
>> Gerry
>>
>> Gerald Steffens P.E.
>> Radio Historian, collecting & restoring E.H. Scott, McMurdo Silver,
>> Hallicrafters, National, Zenith Transoceanics & any other interesting
>> radios & classic Oldsmobiles
>>
>>
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>
>
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