[R-390] CV133 vs 6C4

[ELDIM]

Hello Boatanchorites
That Cecil is sure a funny guy?
But true to his convictions!
Now on the serious side of an issue close to my heart.  ELECTRON TUBES,
VACUUM TUBES, VALVES, or what ever name they go by are of interest to me and
will always live on.  You stirred my interest to dig out some of my custom &
specialized manuals to see what they had on the subject.  I know they were
of UK/Great Britain origin and appear on a lot of my WWII military tube
boxes and even later on.   I was surprised that they did not appear in my
1st Edition, August 1950,SECTION 16-820 CATALOG of NAVY MATERIAL, BUREAU of
SHIPS SECTION- PART II, titled "ARMED FORCES CROSS INDEX of ELECTRON TUBES"
which was edited & formated by Check Penson WA7ZZE.  I also have A GUIDE TO
SPECIAL PURPOST TUBES, published by GRAHAM ELECTRONICS SUPPLY, INC.
Copywright 1955, which also has no reference to these designations.  My TV-7
Set-Up Booklet, dated OCT 1957 has reference and Settings for a little over
two pages of these CV numbers at the end.  I'll have to dig into my older
Manfacturer Data Books and see what else I can turn up.  Lastly, a search of
the FEDLOG DATA under "CV" turns up 16 tube types.  Till later. KEEP THOSE
FILAMENTS LIT!  Heading for the the ole homestead soon.
73,
Glen Galati, KA7BOJ
Tacoma, WA
eldim at att.net

p.s. If any of you have Tech Data on Vacuum Tubes that you'd like to share
then lets hear from you.

----- Original Message -----
From: "Cecil Acuff" <chacuff at cableone.net>
To: "Andy Jackson G8JAC" <g8jac at btinternet.com>; <r-390 at mailman.qth.net>;
"Tim Shoppa" <shoppa_r390a at trailing-edge.com>
Sent: Saturday, January 28, 2006 4:11 PM
Subject: Re: [R-390] CV133 vs 6C4


> Well you will have to excuse us over here.  The CV markings must be
somewhat
> obscure on the world market because there wasn't much to be found on them
on
> a Google search.  The pictures I did find showed them to look much like
the
> Russian markings and build.
>
> We understand "Valves"...but they are usually under the "Bonnet"
>
> Cecil Acuff
> WB5VCE
> ----- Original Message -----
> From: "Andy Jackson G8JAC" <g8jac at btinternet.com>
> To: <r-390 at mailman.qth.net>; "Tim Shoppa" <shoppa_r390a at trailing-edge.com>
> Sent: Friday, January 27, 2006 5:59 PM
> Subject: RE: [R-390] CV133 vs 6C4
>
>
> > Russian?  How dare you sir!
> >
> > The CV stands for Common Valve (so not surprising that you guys over
there
> > don't recognise it as a "tube")!
> > It is a series of devices approved to a common British specification
with,
> > mostly, equivalents in the commercial world.
> > CV133 is indeed, equivalent to a 6C4, A.K.A. in europe as the EC90.
> > The CV2842 is the equivalent of the 6C4W.
> > CV5183 is the 6C4WA that also meets JAN approval specifications,  and
> > CV4058
> > is a 6C4WA that meets British military secs.
> >
> > 73,
> > Andy G8JAC
> >
> >
> >
> > Previous people said:
> >
> > |>I'm guessing from what little I could find that the CV is Russian
> > |>or another eastern block designation.
> > |>`
> >
> > |>> Is the CV133 the British version of the 6C4? Is it the british
> > mil-spec
> > |>> version? (I'm not all that familiar with British tube numbering, I'm
> > |>> deeply suspicious of any tube that says "ECC" on it too!)
> > |>>
> > |>> Or am I wrong and "CV133" is a Russki marking?
> > |>
> >
> >
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