Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early Television Foundation CRT Rebuilding Project

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #1  
Old 05-19-2014, 07:07 AM
Steve McVoy's Avatar
Steve McVoy Steve McVoy is offline
VideoKarma Member
 
Join Date: Oct 2002
Location: Columbus, Ohio
Posts: 1,128
Progress Reports on the ETF Rebuilding Project

I plan to post periodic reports on our progress here.

First, I'd like to say that we view this as a long term effort - probably years before we can produce rebuilt tubes in any quantity. And, of course, we may never get there.

Our goal is to have a non-profit, self supporting operation that rebuilds tubes for collectors.

We have been making slow but steady progress toward this goal. First, we got the equipment from Hawkeye when they shut down and transported it to Hilliard. This gave us most of what we need to rebuild tubes.

This year we built the room where the equipment will he housed. Volunteers at our convention completed the drywall finishing, and the equipment will be moved in soon.

Recently we raised $8,500 to purchase and ship to Ohio phosphoring and aluminizing equipment from RACS. It should arrive this summer.

We have been accumulating stock of guns, glass, etc. as we find it. I think there is a considerable amount of this stuff out there that we will eventually get.

Our hope is that this year people will use the facility to experiment with rebuilding.

We also hope that by next year we will have a funtioning, active committee in place to oversee the operation. This group would work on the problems:

1. A business plan. Which tubes can we rebuild at a price that collectors can afford? How do we manage the facility?

2. How do we deal with the long term problem of guns? We will have a sufficient stock to do some tubes (who know how many, but maybe 100 late 40s black and white tubes and 50 color roundies), but we will need to find guns, stems, glass tubing, getters, etc. for an ongoing operation.
Reply With Quote
  #2  
Old 05-19-2014, 02:00 PM
Username1's Avatar
Username1 Username1 is offline
Not sure how I got here.
 
Join Date: Dec 2009
Location: Orange County NY
Posts: 3,466
Very cool, thanks for the update !
__________________
Yes you can call me "Squirrel boy"
Reply With Quote
  #3  
Old 05-25-2014, 04:38 PM
colorfixer's Avatar
colorfixer colorfixer is offline
VideoKarma Member
 
Join Date: Aug 2005
Posts: 316
Stems and guns: I found this on E3ay this afternoon. The vendor states they have many in stock. Looks like a color gun.

http://www.ebay.com/itm/Steam-Punk-A...item51ba004a98
Reply With Quote
  #4  
Old 05-25-2014, 06:49 PM
Electronic M's Avatar
Electronic M Electronic M is online now
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 8,835
Can an inline color gun like that even be a good parts donor for the monochrome and delta-gun color types that are worth the effort to rebuild?
__________________
Tom C.

What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4

Reading between the scan lines since the mid 2000's.
Reply With Quote
  #5  
Old 05-25-2014, 07:45 PM
colorfixer's Avatar
colorfixer colorfixer is offline
VideoKarma Member
 
Join Date: Aug 2005
Posts: 316
At one time, the discussion turned to trying to broaden the types of tubes that could be rebuilt. If they posted an inline gun, and they stated that they have others, there could be delta and monochrome guns in the stash as well.

A tube like M48AAW00X is an example that is popular and priced high enough to warrant a rebuild attempt for those who need them.
Reply With Quote
Audiokarma
  #6  
Old 07-12-2014, 06:41 AM
Steve McVoy's Avatar
Steve McVoy Steve McVoy is offline
VideoKarma Member
 
Join Date: Oct 2002
Location: Columbus, Ohio
Posts: 1,128
Progress Report, July 12, 2014:

Walls and ceiling of the CRT rebuilding room have been painted. Next is the floor. We will schedule a day sometime this summer for volunteers to install the equipment and finish the construction.

We are still waiting for details of a quote that RACS received for shipment of their stuff to Ohio. We expect that shipment will happen this summer.
Reply With Quote
  #7  
Old 08-26-2014, 03:46 PM
tvcollector's Avatar
tvcollector tvcollector is offline
VideoKarma Member
 
Join Date: Sep 2010
Location: So. Florida
Posts: 1,554
I can't wait until this happens.. I'm going to put a tube aside to wait and have rebuilt..
__________________
Looking for an all tube or hybrid color TV set from the late 1960s, early 1970s that's in a steal cabinet..
Reply With Quote
  #8  
Old 09-08-2014, 07:07 AM
Steve McVoy's Avatar
Steve McVoy Steve McVoy is offline
VideoKarma Member
 
Join Date: Oct 2002
Location: Columbus, Ohio
Posts: 1,128
Progress report - September 8, 2014

www.earlytelevision.org/crt_project.html
Reply With Quote
  #9  
Old 09-08-2014, 11:10 PM
ChrisW6ATV's Avatar
ChrisW6ATV ChrisW6ATV is offline
Another CT-100 lives!
 
Join Date: Feb 2007
Location: Hayward, Cal. USA
Posts: 3,308
Steve-

I am very happy to hear of the progress at the ETF. If I was nearby, I would want to help with the museum/foundation's efforts. Thank you for the ongoing work and for posting the update.
__________________
Chris

Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did."
Reply With Quote
  #10  
Old 09-30-2014, 09:07 PM
Steve McVoy's Avatar
Steve McVoy Steve McVoy is offline
VideoKarma Member
 
Join Date: Oct 2002
Location: Columbus, Ohio
Posts: 1,128
Take a look at our project page. We have made a great deal of progress:

http://www.earlytelevision.org/crt_project.html
Reply With Quote
Audiokarma
  #11  
Old 10-01-2014, 12:43 PM
JBL GUY JBL GUY is offline
VideoKarma Member
 
Join Date: May 2009
Posts: 138
That is great.

Thank you for the update and the pictures.
Reply With Quote
  #12  
Old 10-01-2014, 01:00 PM
old_tv_nut's Avatar
old_tv_nut old_tv_nut is offline
See yourself on Color TV!
 
Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 4,253
super! Thanks for the updates.
Reply With Quote
  #13  
Old 10-02-2014, 10:53 AM
mpatoray's Avatar
mpatoray mpatoray is offline
VideoKarma Member
 
Join Date: Apr 2010
Location: Near Youngstown Ohio
Posts: 258
Very good to see the Oven coming together. Has a decision been made as to a make/model of thermostat and if it will just have one temperature probe or multiple?

Is the sheet metal uncoated or is there a coating on it that might out gas when heat is applied?

Matt
Reply With Quote
  #14  
Old 10-02-2014, 12:11 PM
Steve McVoy's Avatar
Steve McVoy Steve McVoy is offline
VideoKarma Member
 
Join Date: Oct 2002
Location: Columbus, Ohio
Posts: 1,128
This is the controller we are going to use:

http://www.amazon.com/JLD634-Setpoin...oak+controller

There will be a single temperature probe. I think the convection fan will keep the temperature uniform.

The sheet metal is galvanized. I'm sure there will be plenty of nasty fumes when I first fire it up - oil, etc. and probably something from the insulation. Over a few hours it will probably all be burned off. During the tube baking it doesn't matter because the inside of the tube is sealed via the O ring on the diffusion pump.
Reply With Quote
  #15  
Old 10-02-2014, 12:18 PM
NoPegs's Avatar
NoPegs NoPegs is offline
The glass is -3dB.
 
Join Date: Mar 2014
Location: Amish Country PA.
Posts: 376
Quote:
Originally Posted by Steve McVoy View Post
This is the controller we are going to use:

http://www.amazon.com/JLD634-Setpoin...oak+controller

There will be a single temperature probe. I think the convection fan will keep the temperature uniform.

The sheet metal is galvanized. I'm sure there will be plenty of nasty fumes when I first fire it up - oil, etc. and probably something from the insulation. Over a few hours it will probably all be burned off. During the tube baking it doesn't matter because the inside of the tube is sealed via the O ring on the diffusion pump.
How hot is the target temperature in the chamber during bake-out?
Reply With Quote
Audiokarma
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:59 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
ęCopyright 2012 VideoKarma.org, All rights reserved.