Date   
Re: Tektronix 533A CRT

Brenda
 

I just wanted to update everyone, and a shout out to Bruce, I tried the WD-40, and it worked like a miracle! I let the WD-40 set for about 30 minutes and the last lead that was stubborn came off with very little effort. The WD-40 cleaned all the neck pins and now all the pins are nice and shiny. Thanks Bruce!

Brenda

Re: Tektronix 533A CRT

Brenda
 

Thank you Bruce! I was thinking of trying some WD-40 on it, but was worried that it may damage the CRT. But if you are suggesting that tells me that I am being too much of a worry wort! And what you are saying about the danger makes total sense. I just hear about the horror stories about these CRT's really going with a bang, as I am sure that the 531A that I got from eBay went. There was hardly any glass left of the CRT, all just really small pieces other than for the neck. To be honest, I do worry about handling CRT's, just need to be safe, smart and really pay attention to what I am doing. The 533A that I am trying to salvage the CRT, has been stripped of anything copper along with the audiophool tubes.

I am going to take your advice, I am just going to put a small dab of WD-40 on that pin, let it sit for a bit to work and then really gently turn it and work it off. I just want to be careful with this CRT as I really want to bring my 531A back to life. Now, getting all the really small pieces of broken glass out that the shop vac won't get will be the fun part!

Brenda

Re: For Sale in Montreal, Canada

 

Hi Richard,
I desperately need a 7CT1N.
Please contact me off list at dennis at ridesoft dot com to discuss the price.
Dennis Tillman W7pF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Richard Katezansky
Sent: Saturday, February 08, 2020 10:43 AM
To: TekScopes@groups.io
Subject: [TekScopes] For Sale in Montreal, Canada

I have the following items no set price just make an offer.
There is some HP available but it has been posted to that group

Tek 7L18 + Manual, working but probably needs some TLC (caps ect.) 7/10 Tek 7L5 no tracking generator + Manual, working 7/10 Tek 7603 mainframe + manual working. 7/10 Tek scopemobile cart. I think a 203, it's too narrow for a 4 bay frame. 7/10 Tek 7603R mainframe working but rough. 5/10 Tek 7704 mainframe + manual, working current cal loop is broken but I have a new one, P11 (bright blue phosphor) 6-7/10
7A18
7A26
7A22
7B53A
7CT1N
7D13
I have manuals for all of the above plug-ins.
Tek Single bay 7000 series plug-in extension test cable/fixture, 2 pieces.

Pick-up preferred but I'm open to shipping. PM to discuss.

Richard





--
Dennis Tillman W7PF
TekScopes Moderator

Re: Tektronix 533A CRT

greenboxmaven
 

The leads take a small tug to come off. The clip is probably corrosion bonded to the pin. The most important thing is to never put any sideways force on them, it can crack the seals. Put a little pentrating oil on the clip and pin, and turn it back and forth gently until it comes loose. It may not move at first, just try to turn it each way until it frees up. Don't pull until it is free to turn a bit. As for the tube, it takes a lot more force than many think to cause the neck of a smaller CRT to implode. The dangerous jugs are old B&W television tubes, especially those over 15 inches. The greater danger is cracking the seal and letting air in. I have smashed many bad CRTs over the years, it's illegal here to put them in the trash intact. Scope tubes of 5 inches or less are not very powerful. 7 inch electrostatic jugs from scopes and TVs are far more dangerous, they are thin walled and really go off. It is smart to wear safety glasses when handling or putting a strain on scope tubes.

Bruce Gentry, KA2IVY

On 2/8/20 4:01 PM, Brenda via Groups.Io wrote:
Hello again everyone,

I was able to get a hold of a 533A that is in bad shape, but I am hoping that the CRT will be good enough that I can use in my 531A. However, in trying to remove the CRT, there is 1 lead that is literally stuck to the CRT neck pin. I didn't go yanking on it, but wanted to know if it does take some force to remove these neck leads. Does it usually take a lot of force to cause a CRT implosion if one has to pull on the wire pretty hard? I am only asking for my safety and the safety of the CRT as I don't want to trash it. Or are there any tricks that I can use to make it easier to remove like a chemical to reduce the corrosion if any?

Brenda




Tektronix 533A CRT

Brenda
 

Hello again everyone,

I was able to get a hold of a 533A that is in bad shape, but I am hoping that the CRT will be good enough that I can use in my 531A. However, in trying to remove the CRT, there is 1 lead that is literally stuck to the CRT neck pin. I didn't go yanking on it, but wanted to know if it does take some force to remove these neck leads. Does it usually take a lot of force to cause a CRT implosion if one has to pull on the wire pretty hard? I am only asking for my safety and the safety of the CRT as I don't want to trash it. Or are there any tricks that I can use to make it easier to remove like a chemical to reduce the corrosion if any?

Brenda

Re: Anyone needing parts from Tektronix 310A, 531A or 533A scopes?

Brenda
 

Hello and thank you for the interest. I was a bit frustrated when I posted this and I do apologize. I think I will hold onto them for now since I know that I will really regret it if I parted them out. I just need to be patient and give it time.

Brenda

Re: For Sale in Montreal, Canada

Ke-Fong Lin
 

Hi Richard,

I would be simple if you just send the price list along.
Thank you.

Best regards,

For Sale in Montreal, Canada

Richard Katezansky
 

I have the following items no set price just make an offer.
There is some HP available but it has been posted to that group

Tek 7L18 + Manual, working but probably needs some TLC (caps ect.) 7/10
Tek 7L5 no tracking generator + Manual, working 7/10
Tek 7603 mainframe + manual working. 7/10
Tek scopemobile cart. I think a 203, it's too narrow for a 4 bay frame. 7/10
Tek 7603R mainframe working but rough. 5/10
Tek 7704 mainframe + manual, working current cal loop is broken but I have a new one, P11 (bright blue phosphor) 6-7/10
7A18
7A26
7A22
7B53A
7CT1N
7D13
I have manuals for all of the above plug-ins.
Tek Single bay 7000 series plug-in extension test cable/fixture, 2 pieces.

Pick-up preferred but I'm open to shipping. PM to discuss.

Richard

Re: Anyone needing parts from Tektronix 310A, 531A or 533A scopes?

Phil Cirocco
 

HI Brenda,
I am desperately looking for a graticule for a 310 or a 360 scope. The transparent insert with the grid lines in front of the CRT. It should easily be removable from the front with no dis-assembly. Please let me know one way or the other. I will gladly pay for it and/or shipping.

Phil Cirocco
Discrete Synthesizers

Re: WTF: TDS3000 Blank option modules.

Ken Eckert
 

Ebay, $10-20ish

On Saturday, February 8, 2020, Oz-in-DFW <lists@...> wrote:

Want to find - expected these might be a service part in stock somewhere.
Want to fill an empty hole.



Re: WTF: TDS3000 Blank option modules.

Oz-in-DFW
 

Want to find - expected these might be a service part in stock somewhere. Want to fill an empty hole.

Re: Dead 2430

Craig Cramb
 



I have checked the power lead - OK, plus the 5 amp quick blow fuse and that is OK
Check F961, located close to the J166/P166 along the angled area of power supply. I’ve had this fuse blow. Don’t remember all the details exactly of how the scope responded to this fuse being blown. If it is Ok, then there are a lot of caps on the PS that may need replacing. I replace all electrolytic except C105 and C305. To change the smaller caps remove PS and the S shape cover support mounted to the PS board to make the job easier. Hopefully you have a service manual.

Craig



On Feb 8, 2020, at 5:53 AM, koralrf via Groups.Io <koralrf=btinternet.com@groups.io> wrote:

Hi

I tend to run all my instruments periodically just to ensure that they are OK.

Today, I turned on my old TEK 2430 - and it was completely dead - no fan, nothing!

I have checked the power lead - OK, plus the 5 amp quick blow fuse and that is OK too..

So I presume that it has a fault in the Power Supply A16 board?

Any suggestions as to the best place to start looking please?

Thanks in advance

Tony

Re: Anyone needing parts from Tektronix 310A, 531A or 533A scopes?

Trevor
 

Brenda-
Consider saving the power transformers, as they have a tendency to develop a leakage path from the elevated potential CRT filament winding to whatever adjacent winding. Failed 310's are commonly saved by adding an external filament transformer, but that's a bit unsightly.
Trevor

On Saturday, February 8, 2020, 4:59:49 AM EST, momemeca <momemeca@...> wrote:

Hello Brenda,
Another request from the land of Oz :-)
I am restoring a number of older TEK scopes, including a 310A, and would dearly appreciate some parts if not a complete donor unit.
Perhaps the other gentleman (Morris I believe) could put me in touch with the fellow in AUS?

Cheers,

Rick
Melbourne AUS

On 8 Feb 2020, at 10:57, Brenda via Groups.Io <brendda75=yahoo.com@groups.io> wrote:

Hello everyone,

I am going to be parting out a Tektronix 310A, 531A and 533A scopes as I have lost too much money trying to get replacement CRTs for them, either damaged in shipping or getter has turned clear.  The parts that I am parting out would be the switches like the timing switch, HV power supplies from the 310A and 531A and special parts that would be considered hard to come by. I am just curious to see how many folks may be need in some parts before actually strip them. If there is enough interest, I will put the parts up on eBay.

Brenda


Dead 2430

koralrf@...
 

Hi

I tend to run all my instruments periodically just to ensure that they are OK.

Today, I turned on my old TEK 2430 - and it was completely dead - no fan, nothing!

I have checked the power lead - OK, plus the 5 amp quick blow fuse and that is OK too..

So I presume that it has a fault in the Power Supply A16 board?

Any suggestions as to the best place to start looking please?

Thanks in advance

Tony

Re: Anyone needing parts from Tektronix 310A, 531A or 533A scopes?

momemeca
 

Hello Brenda,
Another request from the land of Oz :-)
I am restoring a number of older TEK scopes, including a 310A, and would dearly appreciate some parts if not a complete donor unit.
Perhaps the other gentleman (Morris I believe) could put me in touch with the fellow in AUS?

Cheers,

Rick
Melbourne AUS

On 8 Feb 2020, at 10:57, Brenda via Groups.Io <brendda75=yahoo.com@groups.io> wrote:

Hello everyone,

I am going to be parting out a Tektronix 310A, 531A and 533A scopes as I have lost too much money trying to get replacement CRTs for them, either damaged in shipping or getter has turned clear. The parts that I am parting out would be the switches like the timing switch, HV power supplies from the 310A and 531A and special parts that would be considered hard to come by. I am just curious to see how many folks may be need in some parts before actually strip them. If there is enough interest, I will put the parts up on eBay.

Brenda


Re: Anyone needing parts from Tektronix 310A, 531A or 533A scopes?

Morris Odell
 

Hi Brenda,

A frend of mine down here in Australia is looking for a fan motor from a 531A or 533A. Would you be prepared to ship one down here?

Thanks,

Morris

Anyone needing parts from Tektronix 310A, 531A or 533A scopes?

Brenda
 

Hello everyone,

I am going to be parting out a Tektronix 310A, 531A and 533A scopes as I have lost too much money trying to get replacement CRTs for them, either damaged in shipping or getter has turned clear. The parts that I am parting out would be the switches like the timing switch, HV power supplies from the 310A and 531A and special parts that would be considered hard to come by. I am just curious to see how many folks may be need in some parts before actually strip them. If there is enough interest, I will put the parts up on eBay.

Brenda

Re: WTF: TDS3000 Blank option modules.

n4buq
 

I have a feeling that was meant to be WTD (WanTeD) but was mistyped.

Thanks,
Barry - N4BUQ

----- Original Message -----
From: "satbeginner" <@satbeginner>
To: TekScopes@groups.io
Sent: Friday, February 7, 2020 1:00:33 PM
Subject: Re: [TekScopes] WTF: TDS3000 Blank option modules.

WTF or WTB?? :-)



Re: WTF: TDS3000 Blank option modules.

satbeginner
 

WTF or WTB?? :-)

Re: WTF: TDS3000 Blank option modules.

Ken Eckert