Author Topic: Tektronix 7633 Scope, Can anyone please help Old64goat!!!  (Read 31116 times)

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Offline finom1Topic starter

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #100 on: May 13, 2017, 07:40:18 pm »
New update from The Old4goat:


Thank you for all your help!!!
 

Offline oldway

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #101 on: May 14, 2017, 04:52:07 am »
A faulty transformer can't have any resonance because it is damped by the internal short circuit between turns or layers...
This transformer is resonating at 25Khz (the frequency I was thinking it works), then I am now 100% sure that this transformer is OK....That's a very good news.  :clap:

The next step should be to reinstall the HV board in the scope without connecting the voltage multiplier and check if we have the -1475V.
 

Offline finom1Topic starter

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #102 on: May 14, 2017, 10:48:35 pm »
Final message from The Old64goat:


Bill sends a heart felt "Thank You" to everyone that has helped him. Everyone has shown there are still goodhearted people left in the world that will help someone in need!!!

Bless you gentlemen for helping Old64goat!!!
 

Offline Harb

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #103 on: May 15, 2017, 06:47:37 am »
LOL.....I can picture him jumping up an down on that HT board..........
 

Offline oldway

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #104 on: May 15, 2017, 07:44:03 am »
Sorry that my post caused such a reaction .... but there was perhaps a mistake from the beginning ....
Old64goat should have been advised not to attempt this reparation.

The Tektronix oscilloscopes were very sophisticated and considered the best analog oscilloscopes on the market.
This is paid when trying to repair them ....

I think that even if he was not handicapped, he would really have great difficulties to repair this oscilloscope ... then I understand that he wants to make his blindness responsible for his difficulties, but it is not .

Even with a lot of experience, a technician fails to repair 100% of the faulty devices ... it's not a failure, we must just accept this reality.

At least, he has certainly learned a lot of thinks with this repair, this is what is the most important  :-+
 
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Offline finom1Topic starter

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #105 on: May 16, 2017, 01:10:40 am »
This topic will no longer be active. It has come to a final conclusion!!!

Thanks everyone for your valuable input!!!
« Last Edit: May 16, 2017, 01:31:06 am by finom1 »
 

Offline kcbrown

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #106 on: May 16, 2017, 01:18:27 am »
I wouldn't remove the topic.  The advice given here is just as sound for someone else who might encounter a similar issue down the line.  It's great stuff, and it would be a shame for it to disappear just because this particular repair attempt didn't have a good outcome.
 

Offline finom1Topic starter

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #107 on: May 16, 2017, 01:30:05 am »
OK, I will take your advice and leave it up.

The Old64goat wants everyone to know he " sure does appreciate everyone helping him out". He wishes "all the best" for everyone here!!! :clap:
« Last Edit: May 16, 2017, 02:12:42 am by finom1 »
 

Offline David Hess

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #108 on: May 16, 2017, 05:42:45 pm »
Sorry that my post caused such a reaction .... but there was perhaps a mistake from the beginning ....
Old64goat should have been advised not to attempt this reparation.

The first paragraph of my first post had such a warning but maybe I was not emphatic enough.

Quote
I think that even if he was not handicapped, he would really have great difficulties to repair this oscilloscope ... then I understand that he wants to make his blindness responsible for his difficulties, but it is not.

There were a lot of suggested simplified non-destructive tests which he did not follow through on that might have revealed the problem.  The communications channel was pretty indirect so maybe he never saw them.
 

Offline Electro Detective

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #109 on: May 18, 2017, 07:15:08 am »
Old64goat gave it a good shot, better than most btw,

time to handball it to the next player, and move on  :-+

Been there, can't win them all  8)
 

Offline Cyberdragon

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #110 on: May 19, 2017, 01:22:51 am »
Another dead piece of gear was Widlarized...

can we get a "smash" emote? >:D
*BZZZZZZAAAAAP*
Voltamort strikes again!
Explodingus - someone who frequently causes accidental explosions
 

Offline Electro Detective

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #111 on: May 19, 2017, 08:46:40 am »
Another dead piece of gear was Widlarized...

can we get a "smash" emote? >:D

Is he a mate of Mr. PhotonicInduction?
 

Online harrimansat

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #112 on: May 19, 2017, 08:59:57 pm »
Mine had  the same problem, and it was bad HV transformer.
Replaced and working again

Reagards!
« Last Edit: May 19, 2017, 09:02:12 pm by harrimansat »
 

Offline David Hess

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #113 on: May 20, 2017, 05:54:04 pm »
Over on the TekScopes@yahoogroups.com email list we have a member who rewinds the transformers using the original cores although I do not remember if he has done a 7623A/7633 transformer.  A couple of other members have done this as well.
 

Offline Cyberdragon

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #114 on: May 20, 2017, 07:12:17 pm »
Over on the TekScopes@yahoogroups.com email list we have a member who rewinds the transformers using the original cores although I do not remember if he has done a 7623A/7633 transformer.  A couple of other members have done this as well.
Do they reassemble Widlarized circuit boards too? :-DD
*BZZZZZZAAAAAP*
Voltamort strikes again!
Explodingus - someone who frequently causes accidental explosions
 

Online harrimansat

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Re: Tektronix 7633 Scope, Can anyone please help Old64goat!!!
« Reply #115 on: November 27, 2022, 11:04:21 pm »
Bad HV transformer
 


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