[Boatanchors] LOOKING FOR FEW PARTS & TUBES

Joseph Orgnero joseph at pacificcoast.net
Sun Mar 5 13:29:41 EST 2006


Re 6V octal base electron-ray indicators. My GE manual  also lists the
6AL5-GT and the 6CD7/EM-34. Thought it may help.
73's
Joe Orgnero VE7LBI
----- Original Message -----
From: <WA5CAB at cs.com>
To: <boatanchors at mailman.qth.net>
Sent: Saturday, March 04, 2006 9:24 PM
Subject: Re: [Boatanchors] LOOKING FOR FEW PARTS & TUBES


> I thought I had some 6U5GT's but turned out they were all 6U6GT (a 6V6GT
> lookalike).
>
> But to correct a previous statement, GT doesn't mean octal base, although
> most if not all of the tubes that it applies to are.  It defines the shape
of the
> glass bulb as being straight (parallel) sided to differentiate the earlier
G
> bulb, which flares out from bottom to near the top.  Octal tubes with
> nomenclatures without any alpha suffix are metal octals.  Then came the
glass G's,
> then the smaller GT's and finally alphabet soup.  Some metal octals have
alpha
> suffixes, but none beginning with "G".  Some octal tubes first appeared as
G's
> (like the 5U4G) and some as GT's (like the 6SL7GT and 6SN7GT).  In which
case
> there is no metal version.  So if there is (and I'm sure, despite Jacks's
> wife's comments) that if he says he has one there is, an octal 6 volt
magic eye
> tube, it has to have a G or GT suffix.  Be difficult to see the eye
otherwise!
>
> Wonder what the extra element might be in a 6X6GT?
>
> In a message dated 3/4/2006 10:56:35 PM Central Standard Time,
> gsteffens at pitel.net writes:
> > I checked my foreign manuals and find no 6U5, GT or other wise (doesn't
> > mean
> > there isn't one however) but I note there is a 6X6 eye tube that appears
to
> > have an octal base listed (at least as far as tubes with conventional
tube
> > designation: voltage, letters, number of elements).  There might be
others
> > in the lettered designation.
> >
> > Cheers,
> >
> > Gerry
> >
> >
> > Collecting &Restoring since 1959
> > Gerald Steffens P.E.
> > Oronoco, MN
> >
> >
> > -----Original Message-----
> > From: boatanchors-bounces at mailman.qth.net
> > [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of k0ewu at juno.com
> > Sent: Saturday, March 04, 2006 10:27 PM
> > To: gsteffens at pitel.net
> > Cc: boatanchors at mailman.qth.net; BOATANCHORS at LISTSERV.TEMPE.GOV;
> > Johnson at mailman.qth.net
> > Subject: Re: [Boatanchors] LOOKING FOR FEW PARTS &TUBES
> >
> > HI ALL, there is a 6U5gt, has an octal base, an english tube I think. I
> > do have one of those in my collection, check with Jim Cross in Orlando.
> > This is the only 6v eye with an octal base that I know of, can be wrong,
> > usually am wife sez.
> > old jack
> >
> >
>
> Robert & Susan Downs - Houston
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