Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early B&W and Projection TV

Notices

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #16  
Old 09-29-2009, 08:22 AM
Eric H's Avatar
Eric H Eric H is offline
Administrator
 
Join Date: Jun 2002
Location: So. Calif
Posts: 11,565
From your picture the CRT looks intact, psooibly just the plastic base has deteriorated somewhat.

The base has an index tab, if it was removed and put back on incorrectly the heaters wont light, or worse, they'd blow from having B+ on them!
The socket seems to be in a natural position so I doubt that's the case here.

The plastic yoke cover also looks pretty deteriorated, that's also common but doesn't mean it's bad.
Reply With Quote
  #17  
Old 09-29-2009, 09:53 AM
HatchetJack's Avatar
HatchetJack HatchetJack is offline
It Aint Easy Bein Sleezy
 
Join Date: Oct 2008
Location: West Georgia
Posts: 14
I wiped off the tubes and snapped some better pics this am. I just cant spot
anything that looks like it got hot and smoked up. My uneducated guess is
that one tube went bad probably 30 years ago and maybe it was
parked in some old lady's house with a fabric over it used as a server or ?
When the guys plugged it up at the S.A., it heated up and was maybe trying
to burn the dust off the tubes and thats what they smelled, I dont know?
Maybe the ? in that enclosed metal box looks a little sootey.








__________________
Official e-waver #43 / Pioneer hpm 100
Marantz 2250b,Music Hall Turntable,Playstation 1
Reply With Quote
  #18  
Old 09-29-2009, 11:00 AM
jeyurkon's Avatar
jeyurkon jeyurkon is offline
VideoKarma Member
 
Join Date: Oct 2008
Location: Central Michigan
Posts: 1,699
That tube that's up to air with the white getter could short and smoke some components. They don't always short, but it happened to me. At least replace the tube before trying it again.

John
Reply With Quote
  #19  
Old 09-29-2009, 11:01 AM
Eric H's Avatar
Eric H Eric H is offline
Administrator
 
Join Date: Jun 2002
Location: So. Calif
Posts: 11,565
Looks pretty good overall, the Flyback looks excellent!
The peeling Dag on the tube, the bad plastic on the yoke and the orange plastic on the base of the CRT are nothing to be concerned about, the nipple on the CRT looks fine.

That tube with the white top is bad though, very possible it might fire up if it were replaced.
Reply With Quote
  #20  
Old 09-29-2009, 01:16 PM
HatchetJack's Avatar
HatchetJack HatchetJack is offline
It Aint Easy Bein Sleezy
 
Join Date: Oct 2008
Location: West Georgia
Posts: 14
Ok, I will see if I can find one locally. One of my customers used to repair
VCR's , Stereos and Tv's back in the day for all the local pawnshops and he
is going to swing by and take a look at it. He said he met an old TV repair
guy a month or so back that might have some tubes. So blow it out with an
air hose, replace the tube, plug it in and see what happens?
__________________
Official e-waver #43 / Pioneer hpm 100
Marantz 2250b,Music Hall Turntable,Playstation 1
Reply With Quote
Audiokarma
  #21  
Old 09-29-2009, 01:23 PM
DaveWM DaveWM is offline
VideoKarma Member
 
Join Date: Feb 2009
Location: Orlando FL
Posts: 5,607
dont blow it out, you will endup getting dag everywhere (the flaking stuff on the crt) and run the risk of blowing a fine wire loose. just replace the tube. If you have a variac and a DMM you could monitor the AC line current.

If no variac then a 100 watt light bulb in series with the ac line would be a good idea.


It may just work, but the filter caps may short, in which case the fuseistor will prob go (pic 5 I think).

a softer start up on a variac will give it a better chance, and at least you could monitor the current.
Reply With Quote
Reply



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 08:26 AM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.