Author Topic: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...  (Read 2714 times)

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Offline carl_lab

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Please, can anybody help me to find a replacement for this push button?

I need one for TDS1002 (lost) and one for TDS210 (broken/missing latch).
TDS210 part and TDS1002 part seem to be identical.

« Last Edit: March 09, 2017, 11:10:58 pm by carl_lab »
 

Offline carl_lab

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #1 on: March 20, 2017, 09:14:30 pm »
Got a reply from german Tektronix support center (CalPlus):

Tektronix 366-0856-00, push button power switch cap, price for 10 pieces:
170EUR (~182USD) + 19% tax ...   :palm:

Are these made of gold?   >:(
« Last Edit: March 20, 2017, 09:20:52 pm by carl_lab »
 

Offline tautech

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #2 on: March 20, 2017, 09:25:13 pm »
They're not listed but you should try Sphere:
http://www.sphere.bc.ca/test/tek-parts/tek-knobs.html
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Offline jpanhalt

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #3 on: March 20, 2017, 09:44:32 pm »
For the missing button, I would try to find something that fits.  For the broken latch (the one on my TDS 210 is also broken), I just use it as is.  Gravity works fine to hold it in place, as I rarely use the scope upside down.  ;)  A little piece of double-sided mounting tape could be added, if that is a problem.

John
 
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Offline JFJ

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #4 on: March 21, 2017, 02:43:54 am »
Tektronix 366-0856-00, push button power switch cap, price for 10 pieces:
170EUR (~182USD) + 19% tax ...

Prices like that could make having the buttons 3D printed quite economic. Especially, as there may be suitable designs already available online, e.g:

http://www.thingiverse.com/thing:1426499
http://www.thingiverse.com/thing:1991220
http://www.thingiverse.com/thing:39909
 
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Offline james_s

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #6 on: March 21, 2017, 05:16:26 am »
I was just discussing with a friend the other day how these buttons always seem to be missing, he mentioned he also has a scope that is missing the button. Tek is usually really good when it comes to the details but they dropped the ball somewhere with that button. I mean how hard is it to come up with a molded plastic button that doesn't fall off?
 

Offline Bushougoma

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #7 on: March 21, 2017, 05:40:05 am »
Who's the manufacturer of that switch E-switch?

Try Digikey it probably won't be an exact color match but hopefully you can find something.

http://www.digikey.com/products/en/switches/accessories-caps/210?k=&pkeyword=&pv98=2&FV=ffe000d2&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=500
 

Offline carl_lab

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #8 on: March 21, 2017, 05:46:15 am »
I mean how hard is it to come up with a molded plastic button that doesn't fall off?
I think the problem is old brittle plastics, in combination with weak latches...

Who's the manufacturer of that switch E-switch?
I'll open the scope and tell you tomorrow.
« Last Edit: March 21, 2017, 05:50:23 am by carl_lab »
 

Offline Bushougoma

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #9 on: March 21, 2017, 06:04:57 am »
That particular shade of blue is a color E-switch uses.

It kind of looks like the P227 series:

http://www.digikey.com/product-detail/en/e-switch/P227EE1CXC/EG1026-ND/271715

Even if you can't find a manufacturer you can measure your existing cap and comb through Digikey to find something that fits.

I mean how hard is it to come up with a molded plastic button that doesn't fall off?
I think the problem is old brittle plastics, in combination with weak latches...


Yeah HP / Agilent / Keysight / Insert name Here :) had that issue with the key caps on their E36xx series power supplies.

I don't know what they are made of but they crack like nobodies business.
« Last Edit: March 21, 2017, 06:17:46 am by Bushougoma »
 

Offline JFJ

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #10 on: March 21, 2017, 06:31:26 am »
Try Digikey it probably won't be an exact color match but hopefully you can find something.

The problem with commercially available button caps is that they tend to be too short - typically 11.2 mm high (the Tektronix button is 18 mm high).

An alternative to 3D printing a button, might be to buy small square button, and build it up to the size and shape of a Tektronix button with something like Milliput.
 

Offline james_s

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #11 on: March 21, 2017, 07:01:40 am »
I haven't seen one of these buttons outside of a scope, but you might be able to make one out of a piece of Delrin stock, cut to size, shape it with a belt sander or file and drill a hole in one end to fit the switch. Another idea is find an off the shelf button that will fit and then stick it on a rigid tube stuck on the switch.
 

Offline tautech

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #12 on: March 21, 2017, 07:56:33 am »
Who's the manufacturer of that switch E-switch?
(TDS2***B) should be very similar, maybe same.
Marked: JPP2295M, P227

Shaft 3.3mm square and ~8.7mm long
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Offline Bushougoma

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #13 on: March 21, 2017, 09:26:41 am »
Who's the manufacturer of that switch E-switch?
(TDS2***B) should be very similar, maybe same.
Marked: JPP2295M, P227

Shaft 3.3mm square and ~8.7mm long

Yup that part is made by E-switch P227 is the series.
« Last Edit: March 21, 2017, 09:29:37 am by Bushougoma »
 

Offline carl_lab

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #14 on: March 21, 2017, 09:58:00 pm »
Try Digikey it probably won't be an exact color match but hopefully you can find something.

The problem with commercially available button caps is that they tend to be too short - typically 11.2 mm high (the Tektronix button is 18 mm high).

OK, then I try to find a way to 3d-print the buttons...
 

Offline tautech

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #15 on: March 22, 2017, 06:08:17 am »
Try Digikey it probably won't be an exact color match but hopefully you can find something.

The problem with commercially available button caps is that they tend to be too short - typically 11.2 mm high (the Tektronix button is 18 mm high).

OK, then I try to find a way to 3d-print the buttons...
Measuring the one I have in my hand: 17.1 mm long, 10.65 mm wide (tapers to top) and 6.57 mm thick (tapers to top)............I would make one from a offcut of nylon, plastic or whatever I could find similar. A corner from mums chopping board even.
Corner to corner measurement of the switch shaft is 4.45 mm but we already know the shaft is 3.3 mm square so say drill a 4 mm hole and flie some steel square @ ~4 mm to use as a broach to square up the hole some.
Some Blue Tac or chewing gum to hold it on....done. Easy.
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Offline tautech

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Offline tautech

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #17 on: March 22, 2017, 06:38:40 am »
Further thoughts:
Open the casing hole ever so slightly so that any push button you might manufacture can be slightly larger in cross section and therefore less thin where the hole is drilled. More robust.  :)
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Offline james_s

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #18 on: March 22, 2017, 07:07:43 am »
I don't think that is necessary. Looking at the photos of the original button it seems that it's hollow. Make it of solid material and it will be very strong.
 

Offline tautech

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #19 on: March 22, 2017, 07:17:39 am »
I don't think that is necessary. Looking at the photos of the original button it seems that it's hollow. Make it of solid material and it will be very strong.
It might not be.

It has a pair of catches that grab onto the recesses of the switch shaft. If these are broken away it will appear to look hollow.
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Offline cj555

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Re: replacing lost/damaged ON-OFF button of Tektronix TDS1002/TDS210...
« Reply #20 on: March 25, 2017, 02:17:57 pm »
This is great stuff. I also have a 1002  missing the power button. Then I stumbled across this thread accidentally (clicked the next thread button instead of next page of thread). Some good ideas, I had  kind of resigned myself to just Jerry rigging something, but now maybe I will do otherwise.

Although, I was informed by tech-support  that part is still available, at least back in May. And assuming that I had gotten the right part number from the service manual or wherever I found it…



Thank you for contacting Tektronix. The 366085600 is still a current part we have cost is about $12. We do have a $30 minimum order amount.

To order a part call 1-800-833-9200 opt 1.
Or send an email to buy@tektronix.com   


Scott Cherry
Tektronix Technical Support Team | Phone: 800-833-9200 option 3 | www.tektronix.com/techsupport


Request/Inquiry :   

Hi, wondering if I could get hold of the  366-0856-00 power button part for my scope. I can't find it on your site  (not surprising given the age of the scope). Failing that, might you have a drawing available so I could make my own? 
 
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