crt rebuilding
 

here is the email i got from Daryl's TV. It sounds like he will take offers read below.

I no longer rebuild tubes. I had to store my equipment when my old building was tore down.
It doesn't require allot of room to set the equipment up. All you need is a water line (1/4" will do), a drain, 120 volt electricity available and natural gas hook-up. Noise level to you surrounding neighbors is nil.
One could get by using a double garage.
As to the cost.... make me a reasonable offer. The equipment is not doing anyone any good sitting in storage and accumulating storage charges.

Daryl's TV
2402 Wyoming Ave.
El Paso, TX 79903
915-565-9184 Voice/Fax
[email protected]
www.angelfire.com/tv2/daryls_tv

Sorry for waking up an old thread, but I'm out of town at the moment and my ancient laptop won't give me the option of starting a new thread.

I've just noticed that ePay seller ihau2011 seems to be selling CRT rebuilding supplies.

Is this anyone that we know?

If not, should we be interested?

Jas.

i looked for that on ebay cant seem to find it is there a idem #. i think that might be something to look into ,if a person could make a living out of doing that ,if there would be enough demand to keep you bussy .im willing to listen how much for the equitment and how to do it. what does a person charge for a reman tube.

Here they are. You can find a seller by doing an advanced search.

http://www.ebay.com/sch/ihau2011/m.h..._sop=10&_rdc=1

i think that would be cool to learn how to do that ,and make a small business out of it too . then you always have the equitment to experiment with, make your gun and glass envelope.

Hello we are suspose to have crt rebuilding at the early telelevision museum sometime soon they are aquiring all the old equipment from Hawkeye contact ETF for info... thank you

Ebay seller location listed as in China.

Wonder what ever happened to Daryl's gear?

I wrote to him after seeing this thread. He replied that he had sold his plant and all his supplies.

Whet yer whistles, guys:

http://chinalyj.en.alibaba.com/produ...ng_system.html

http://www.kineskopy.com.pl/index_en.html

http://www.kineskopy.com.pl/index_en.html

Love the sales pitch. :D

I'm not clear on where new guns and related supplies are sourced.

I ran across a few listings for CRT internals when I was looking on ebay for a 4.5" little CRT a couple weeks ago. There were listings for big cases or "flats" of just the gun assemblies that would be used in a rebuild.

I remember thinking just what sort of hardcore TV guy would or COULD rebuild a CRT. I was completely stumped by simply finding a single broken focus pin on a little tiny b/w CRT. I eventually TRIED to look at mine through two sets of magnifiers and NECKED the thing the SECOND I touched it. I forgot you have to be CAREFUL with trying to work behind HIGH magnification and immediately smacked the end of the tube with a pair of needlenose. Broke the little nib off the end of the tube even before I had the chance to try and solder a lead to the broken off focus pin :-(

Must take a whole WORKSHOP of specialised stuff to actually safely remove and replace the gun assembly...AND be able to work with the glass....evacuate the tube, etc.

Wouldn't that be an awesome "attaboy" feeling to accomplish this though and rescue some IMPOSSIBLE old CRT!

so has anyone contacted them to see if they can rebuild old tubes?

Now that I see the cathodes are available I would totally jump on this. With Americas expanding economy and all the expendable cash people have for their hobbies this would be a great investment right now. The reliable, economical high quality shipping services we have available would really aid in logistics and increase profits. With and ever expanding customer base.....ok, ill shut up now

:lmao:

I SECOND THAT:lmao::lmao::lmao:

the early tv foundation museum is getting crt rebuilding soon.

it would be vary interesting to see that done step by step on a video from the museum ,i would like to learn how to do that.

We are hoping to rebuild tubes eventually, but that is some time away. We have the plant, but there is still a long way to go to put it into production. For now the only alternative is RACS in France.

Hi to All,

Snelson903, Here is footage of CRT rebuilding edited by Dave S.

Footage was shot by Nick W. - Miniman82 at the RACS facility in France in june 2012 when he came over to learn the craft.

http://www.youtube.com/user/EarlyTel...sort=da&view=0

Many Thanks! once again to Dave S. for editing the raw video & posting on YouTube.

Best Regards

jhalphen
Paris/France

As Leonard Nimoy says......

"fascinating". Watched all 28 clips...and still wanted to see MORE

I tried uploading the rebuilding report to my website, but it's a very large file. I need to figure out how to use FTP or something...

wow ! wow ! thats really cool it looked like there was enough to keep him busy, i seen other tubes sitting around ,i just loved the sound of that drill sounds like my dentist. lol thanks for showing that i could get into rebuilding crt's .

I wanted to see this clear up to putting the guns in...sealing it up, and then seeing it on a test jig with an old Indian head pattern with resolution bars.

It reminded me of some vid I saw SOMEWHERE of a guy building a tube from scratch. The music was neat (but kept looping which got annoying)...but was very "zen" like to watch.

i was also wanting to see the gun asm. are they rebuilt or new complete guns ?

Hi to All,

RACS reopened from august holidays yesterday.

They will be shipping very soon the 10BP4 type CRT Nick built from A to Z for himself so maybe HE can show you the Indian Pattern once it's installed.

OT: 10x 15Gs to rebuild + 12 radar tubes, fall of 2012 is definitely going to be a glass frit season...

Best Regards

jhalphen
Paris/France

That's good news! Thanks for the update Jerome.

Don't forget Folsom and my prototypes, we eagerly await the brother's word as to whether or not it is possible to regun and evacuate them. I'm very sad that such a good tube failed in such a way, around the neck. I almost want to go buy a polarimiter myself, to see if the neck glass was overheated.

I think it was this video: http://www.dailymotion.com/video/x3w...pe-triode_tech

tvtimeisfun needs a 1965 rca new vista color tube rebuilt:banana:

Hey everyone! Any new news from France on the rebuild efforts?

Boy that guy has a VERY NICE SITE and business!!

Hi to All, Sweitzel,

Recent update:
10x 15GP22s currently at RACS. A first batch of 4 tubes is undergoing the frit process. This is very time consuming: 4x frit applications & 4x cooking cycles are necessary per tube to seal the two glass to metal welds, fore and aft of the metal anode ring + a 5th frit pass on the outer rim of the metal anode.

see diagram supplied courtesy of Bob G./John F.jr/J.Yurkon

Since mid Oct, various tweakings of the frit formula have been tested to optimize smoothness and adherence.

Once the first 4 glass envelopes have been completed, partial vacuum testing will be done without a gun. Until the envelopes prove to be totally airtight, no use risking to spoil a rebuilt gun - 16 man/hours of work per tri-color gun.

Other CRT activities:
Nick (Miniman 82) built himself a B&W CRT (10BP4 type) from A to Z using NOS glassware found at RACS. The CRT is now with Nick in WI and hopefully should soon be installed in a TV chassis at the ETF.

NOS 12" glassware is planned to be used to make "repro" Mazda CRM-121's for the UK. This is a Pre-War Pyrex tube.

RACS's partner SIVE is assessing the possibility to build repro Pyrex tubes from scratch. The principle is to fold over a very large Pyrex cylinder to make the screen at one end, then fuse a much thinner diameter tube at the other end to make the neck. From the industrially available Pyrex cylinders, max screen size would be limited to 9 inches.

A transparent vessel already made using this technique is due to be sent to RACS to assess the screen's optical flatness once covered with P4 phosphor.

Some genuine Pre-War Pyrex tubes which exhibited micro-cracks and cracks around the final anode button have been sent to SIVE for Pyrex reflow (Darryl's 12AP4 for instance).

Gun rebuilds: RACS rebuilds them, but one man only is a slowdown for volume quantities, therefore looking for partners.

Contacts are being made with E-Beam (USA), Southwest Vacuum (are they still doing them?) and Thomas Electronics - we found out they have a plant in France. We had high hopes about an ex-Philips plant in Holland, alas it closed down in July.

I called RACS today and asked for a totally up to date report. Should have it tomorrow, with photos promised of the fritted 15Gs.

Best Regards

jhalphen
Paris/France

Thanks for the update Jerome.

I gave Steve McVoy contact information about the CEO of Southwest Vacuum and even spoke with the CEO, Ron Ordway. That was back in August. I haven't heard anything from Steve since then or driven by the building to see if they have vacated the premises. They are/were located in Stone Mountain, GA.

Tom Evans

Tom, we are working on it, but have no resolution yet.