Need replacement part for Tek 466

MikeB · 10th May 2005, 05:03 PM

Hello !

Is there anybody having a replacement tek-part "155-0115-00" ?
This is a hybridchip-amplifier for vertical deflection in a tektronix 466...
Seems not to easy to get this part !

The rest of the scope seems to be in perfect condition, so i would
really like to get it running again !

Any help would be great !

Mike

jackinnj · 10th May 2005, 09:54 PM

Quote:

Originally posted by MikeB
Hello !

Is there anybody having a replacement tek-part "155-0115-00" ?
This is a hybridchip-amplifier for vertical deflection in a tektronix 466...
Seems not to easy to get this part !
The rest of the scope seems to be in perfect condition, so i would
really like to get it running again !

Any help would be great !

Mike

the only way to get some of these parts is to cannibalize another Tek scope -- this model will run anywhere from $20 to $200.

MikeB · 11th May 2005, 09:42 AM

You mean the "make one out of two" method ?

jackinnj · 11th May 2005, 12:45 PM

i was lucky to find a 5L4N spectrum analyzer plug-in "parts unit" -- lucky because the other one I had was missing the "miller integrator" chip -- cannibalization is one way to go -- much easier in the US than Europe as we have a huge surplus market with low shipping prices.

the prices of some analog scopes are so ridiculously cheap that you might just get another 466.

it's a pity too -- an analog scope will never lie to you, a digital scope often doesn't tell the truth.

MikeB · 11th May 2005, 01:34 PM

The tektronix scope here in ebay-germany get quite high prices,
even the defect ones...
Especially the 466 storage-scope seems very recommended...
The one i got is definitely valuable, it has emi-shielding and isolated
inputs, means i can measure 2 channels with seperate groundings...
Also all the knobs, printings and so on are like new.
Otherwise i would resell it...

Mike

Whit · 11th May 2005, 06:51 PM

You might want to try here:

http://www.sphere.bc.ca/test/tek-parts/tekparts3.html

MikeB · 11th May 2005, 07:26 PM

Yep, thanks !
But this was the first adress i tried, but this part is on status "sorry,sold"...
I already asked by email, they really don't have one !

Mike

tekman · 14th June 2005, 11:45 AM

2 MikeB:

A vertical amp hybrid from the 465 or 465B will work. Easier to get ;-)

Once you have opend your scope: Make shure to check the electrolytics in the LV supply, they often go bad due to age ("dry" caps)

hth,
Andreas

MikeB · 14th June 2005, 12:03 PM

Hi !

I thought it's the same chip ?
But, i was able to buy a new chip, was not cheap, 60us$...
Will replace it the next days.

How do i check these caps ? Optically they are fine...
And the scope needs ~2 days to discharge, after turnoff i
measure still 3v in the supply for days, they should be fine ?

Mike

tekman · 14th June 2005, 12:45 PM

That is what I said: it is the same chip in these different scope types (465/465B/466. 7633 should have same too)

For caps: No, your method is not gving info about good caps in the way we need it here for this scope. If you want to make shure the caps are ok then you have to check for ESR . Do a google search .

Or look here : http://clientes.netvisao.pt/greenpal/evb1.htm

Buy one ESR meter and you will enjoy this as a VERY useful addition to your testbench.

hth,
Andreas.

10th May 2005, 05:03 PM	#1
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	Need replacement part for Tek 466 Hello ! Is there anybody having a replacement tek-part "155-0115-00" ? This is a hybridchip-amplifier for vertical deflection in a tektronix 466... Seems not to easy to get this part ! The rest of the scope seems to be in perfect condition, so i would really like to get it running again ! Any help would be great ! Mike

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11th May 2005, 09:42 AM	#3
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	You mean the "make one out of two" method ?

11th May 2005, 12:45 PM	#4
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	i was lucky to find a 5L4N spectrum analyzer plug-in "parts unit" -- lucky because the other one I had was missing the "miller integrator" chip -- cannibalization is one way to go -- much easier in the US than Europe as we have a huge surplus market with low shipping prices. the prices of some analog scopes are so ridiculously cheap that you might just get another 466. it's a pity too -- an analog scope will never lie to you, a digital scope often doesn't tell the truth.

11th May 2005, 01:34 PM	#5
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	The tektronix scope here in ebay-germany get quite high prices, even the defect ones... Especially the 466 storage-scope seems very recommended... The one i got is definitely valuable, it has emi-shielding and isolated inputs, means i can measure 2 channels with seperate groundings... Also all the knobs, printings and so on are like new. Otherwise i would resell it... Mike

11th May 2005, 06:51 PM	#6
Whit diyAudio Member Join Date: Mar 2003 Location: USA	You might want to try here: http://www.sphere.bc.ca/test/tek-parts/tekparts3.html

11th May 2005, 07:26 PM	#7
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	Yep, thanks ! But this was the first adress i tried, but this part is on status "sorry,sold"... I already asked by email, they really don't have one ! Mike

14th June 2005, 11:45 AM	#8
tekman diyAudio Member Join Date: Oct 2004	2 MikeB: A vertical amp hybrid from the 465 or 465B will work. Easier to get ;-) Once you have opend your scope: Make shure to check the electrolytics in the LV supply, they often go bad due to age ("dry" caps) hth, Andreas

14th June 2005, 12:03 PM	#9
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	Hi ! I thought it's the same chip ? But, i was able to buy a new chip, was not cheap, 60us$... Will replace it the next days. How do i check these caps ? Optically they are fine... And the scope needs ~2 days to discharge, after turnoff i measure still 3v in the supply for days, they should be fine ? Mike

14th June 2005, 12:45 PM	#10
tekman diyAudio Member Join Date: Oct 2004	That is what I said: it is the same chip in these different scope types (465/465B/466. 7633 should have same too) For caps: No, your method is not gving info about good caps in the way we need it here for this scope. If you want to make shure the caps are ok then you have to check for ESR . Do a google search . Or look here : http://clientes.netvisao.pt/greenpal/evb1.htm Buy one ESR meter and you will enjoy this as a VERY useful addition to your testbench. hth, Andreas.

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