4x CD47 / GR-414 - Ultra Rare Nixie Tubes

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Nicholas Stock

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Sep 27, 2017, 2:16:13 PM9/27/17
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Anyone want to take bets on what these sell for??? :-)


Sent from my iPhone

track01

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Sep 27, 2017, 3:21:00 PM9/27/17
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Those look heavily used according their (possibly loose) sockets, labels, glue...

jb-electronics

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Sep 27, 2017, 3:55:15 PM9/27/17
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I actually thought they look nearly brand new. There is almost no darkening on the glass. How come you think they are heavily used?

Jens


On 9/27/2017 1:21 PM, track01 wrote:
Those look heavily used according their (possibly loose) sockets, labels, glue...
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Nicholas Stock

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Sep 27, 2017, 4:27:14 PM9/27/17
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My thoughts too Jens, they look in good condition to me...still damn ugly though....;-)

On Wed, Sep 27, 2017 at 12:55 PM, jb-electronics <webm...@jb-electronics.de> wrote:
I actually thought they look nearly brand new. There is almost no darkening on the glass. How come you think they are heavily used?

Jens


On 9/27/2017 1:21 PM, track01 wrote:
Those look heavily used according their (possibly loose) sockets, labels, glue...
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Dan Hollis

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Sep 27, 2017, 5:41:00 PM9/27/17
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I'll wait for dalibor to make some :)

-Dan

On Wed, 27 Sep 2017, Nicholas Stock wrote:

> Anyone want to take bets on what these sell for??? :-)
>
>
> Look at this on eBay
> 4x CD47 / GR-414 - Ultra Rare Nixie Tubes
>
>
>
> Sent from my iPhone
>
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Paul Andrews

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Sep 28, 2017, 6:58:33 AM9/28/17
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I was outbid!

Alex

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Sep 28, 2017, 7:08:01 AM9/28/17
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Why is there a slot down the base of them? It looks too rough to be original and shows some chipping on the Bakelite...

  

MichaelS

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Sep 28, 2017, 7:29:54 AM9/28/17
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I guess it's to allow the base to expand to slip over the glass and fit more tightly via friction.  That is, you make the glass slightly bigger than the base so the bakelite flexes when put on the tube and holds things tight.  Would make it easer for the glue to set, etc.

Tom Van Baak

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Sep 30, 2017, 5:21:20 PM9/30/17
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About those CD47 tubes on eBay... To me, they look slightly used, or maybe abused during shipping or storage. You can see minor chipping all along the expansion slots of the base.

By contrast, here's what the base of a new CD47 looks like:

http://www.leapsecond.com/pages/CD47/cd47-base-1200x1200.jpg

http://www.leapsecond.com/pages/CD47/

/tvb


Dekatron42

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Sep 30, 2017, 6:45:02 PM9/30/17
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If you look carefully at the photo of all four tubes you can see that the one to the right has a different label than the other three, it also has a date code on that label which the other three are missing. My guess is that the three with the same label have another type of bakelite socket compared to the one on the right, maybe they changed the type of bakelite between these two different models.

The one on the right looks similar to the leapsecond photo as that one also has a date code.

/Martin

jb-electronics

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Sep 30, 2017, 6:56:00 PM9/30/17
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I have had the same socket appearance with a few of the "gold label" GR-414 tubes. Jens
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gregebert

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Oct 2, 2017, 2:27:01 PM10/2/17
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The sad thing for me is that I've actually thought about bidding on these, which means I'm an addict.

----------------
In case any of you saw the movie that just came out, "Battle of the Sexes" , there is a hilarious scene where Steve Carell (who portrays Bobby Riggs) goes on a monologue at a gambler's anonymous meeting. The same can be said about buying nixie tubes on Ebay.

Nicholas Stock

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Oct 2, 2017, 5:49:46 PM10/2/17
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oohhh...Greg, you've got it bad..;-)

All the fun bidding starts in the last 30 seconds....stupid isn't it? I wish they'd institute a Dutch Auction style....any new bid adds 10 minutes to the auction end time...that way, the seller gets a better deal and less people get 'sniped'....but then the number of 'bargains' people get would be lower I suppose.....



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SWISSNIXIE - Jonathan F.

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Oct 11, 2017, 11:28:04 PM10/11/17
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Sold for 3200€ (3800$), so almost 1000$ per tube... madness... I mean paying 600 for one for collection is already crazy, but buy 4?...

Just to put that in relation: 26 Dalibor tubes would cost the same... 26!!!!

Nicholas Stock

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Oct 12, 2017, 12:24:41 AM10/12/17
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They say there's one born every day....I think that's an underestimation....;-)

However, if it makes people happy, then so be it, life is short.

On Wed, Oct 11, 2017 at 8:28 PM, SWISSNIXIE - Jonathan F. <jfre...@gmail.com> wrote:
Sold for 3200€ (3800$), so almost 1000$ per tube... madness... I mean paying 600 for one for collection is already crazy, but buy 4?...

Just to put that in relation: 26 Dalibor tubes would cost the same... 26!!!!
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gregebert

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Oct 12, 2017, 1:05:39 AM10/12/17
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Well, whoever bought them knows that when they get tired of these tubes, they can resell them and probably break even, or better. I sometimes wonder if these are passed-around thru various auctions every few years, from one person to the next.

I see a lot of parallels to those who collect more conventional forms of art. And I've seen a lot of art that makes me wonder what people were thinking they paid millions for it. Only the buyer knows.

Does anyone know what kind of devices used CD47s ? Certainly not a calculator or any test equipment.

SWISSNIXIE - Jonathan F.

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Oct 12, 2017, 1:14:30 AM10/12/17
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I heard a story that they were used in weight stations for trucks. There is symbol tube in the same size made by rodan that can display "kg" and "t" which would make the story plausible.

Nick

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Oct 12, 2017, 4:29:37 AM10/12/17
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On Thursday, 12 October 2017 09:14:30 UTC+4, SWISSNIXIE - Jonathan F. wrote:
I heard a story that they were used in weight stations for trucks. There is symbol tube in the same size made by rodan that can display "kg" and "t" which would make the story plausible.

True - the systems are called "weighbridges" - the digits were big so that they could be read from the trucks.

I also heard that they were in East Germany,,,

Whatever anyone else thinks, I like them. Used to have quite a few, sold most, now just one set of 6 left (not in a clock at the moment)

Nick 

Paul Andrews

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Oct 12, 2017, 7:51:26 AM10/12/17
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Yes. The price is what it is. I'm a big fan of Rodan tubes in general. I think they stand alone as a work of art. The extra little touches such as chrome bases and chromed labels are what make them stand out for me. Plus they function well and were made in a huge range of sizes and styles. The CD47 is not just a unique member of their product set, there is simply nothing else like it in the world of Nixie tubes period.

Greg P

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Oct 12, 2017, 9:13:17 AM10/12/17
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Does anyone know if they're long life (mercury) type tubes?  I'd hate to spend that kind of $$$ on them and have them sputter out when being used.  

MichaelS

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Oct 14, 2017, 10:53:34 AM10/14/17
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Probably not.  I haven't seen anything saying that they're long life tubes, but have seen several pics of darkened smaller versions (70mm GR311's.)  

Greg P

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Oct 14, 2017, 1:12:41 PM10/14/17
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Thanks....all the more reason, I'll save my money and wait for Dalibor to release a superior alternative for 1/5th the price.

John Rehwinkel

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Oct 22, 2017, 10:13:52 PM10/22/17
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> I heard a story that they were used in weight stations for trucks. There is symbol tube in the same size made by rodan that can display "kg" and "t" which would make the story plausible.

Right. I have one of those tubes (but none of the digit ones). I got it cheap because it had an internal short, but it was just one of the big symbols caught on an interior part. Some careful tapping freed it.

- John

Paul Andrews

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Oct 23, 2017, 9:15:49 AM10/23/17
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Can you post a picture?
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track01

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Oct 23, 2017, 3:05:29 PM10/23/17
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Paul Andrews

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Oct 23, 2017, 6:05:04 PM10/23/17
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Love the 1610
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