Comments on: Sparking Tube In Singer CRT TV

By: Arnold Que Pia

Arnold Que Pia — Fri, 14 Oct 2016 08:12:38 +0000

Hi to all,

May you help me on how to adjust the convergence? Please help me and assist me through the help also of the pictures.

Likes(0)Dislikes(0)

By: Jumbe Mateyu

Jumbe Mateyu — Sat, 16 Jan 2016 03:52:29 +0000

Hi Suranga
Thank you for your well explained article on CRT. Keep the good work up.
To Azis you touched on a very important topic on CRT analyser\rejuvenator. Is it difficult to use? How long does it take to rejuvenate a CRT and for how long can a rejuvenated CRT work and finally how much in USD does one CRT analyser\rejuvenator cost. Sorry to have troubled you with lots of questions but I have a lot of faulty CRTs at my workshop and I believe this gadget can help me revive some if not all of them
.

Likes(0)Dislikes(0)

By: zondiwe longwe

zondiwe longwe — Thu, 14 Jan 2016 11:16:38 +0000

I thank you very much for your great knowledge you given me. work made simple

Likes(0)Dislikes(0)

By: Parasuraman S

Parasuraman S — Wed, 13 Jan 2016 16:11:07 +0000

Good work! If you have access to Modern Colour Television Circuits published by BPB Publications, Delhi, on the inside cover, you can see guidelines given for rejuvenating a CRT Tube and solving shorted CRTs.

Likes(0)Dislikes(0)

By: Paris Azis

Paris Azis — Wed, 13 Jan 2016 16:08:29 +0000

Hey Suranga

Good job! I have repaired many-many CRTs in the past having similar problems using my trusty “B/W- Color CRT analyzer/rejuvenator” from “LEADER”, a very famous in my country Japanese electronic instruments manufacturer during the last forty (at least) years.
Most of the CRT problems, like inter-electrode short-circuits (grid-to-cathode, cathode-to-filament, acceleration grid-to other electrodes etc) could be restored with the aid of this instrument. Moreover open electrodes could be welded as well (!!!) and color balance tests as well as low emission tests and rejuvenation in any color gun thereafter was also feasible, either in auto (timed) mode or manual (hand-timed) mode. And also the applied restoration voltage was either auto or manually selected…
Thank you for refreshing my memory!!

Best Regards

Likes(1)Dislikes(0)

By: Robert Calk

Robert Calk — Wed, 13 Jan 2016 15:27:57 +0000

In reply to Andre.

What is so great about it?

Likes(1)Dislikes(2)

By: Andre

Andre — Wed, 13 Jan 2016 12:53:24 +0000

Great repair article Suranga. Keep up the good work.

Likes(0)Dislikes(0)

By: Albert van Bemmelen

Albert van Bemmelen — Wed, 13 Jan 2016 11:20:19 +0000

Well done Suranga! The hard part always must be adjusting the HV to the new tube or at least check if the Line Frequence Regulated Tranformer HV Output is within spec to prevent X-rays. Those HV Probes are quite expensive but if I remember it well there has been a DIY project in the last 2 years in one of the Everyday Practical Electronics UK magazines. Such a Probe would be an ideal tool for these kind of CRT replacements.

Likes(1)Dislikes(0)

By: Yogesh Panchal

Yogesh Panchal — Wed, 13 Jan 2016 06:37:18 +0000

Suranga,

Good job!! keep up sharing.

Likes(2)Dislikes(0)

By: skwong

skwong — Wed, 13 Jan 2016 06:11:10 +0000

Good work. Wise decision to change the crt as this type of fault cannot be repair as far as I know.

Likes(1)Dislikes(0)