Tek 2235 CRO broken :-(

firestorm · 20th March 2007, 11:26 PM

Hi,
I've got a Tektronix 2235 dual trace 100Mhz scope, which I've had for years. I haven't switched it on for a couple of years till last night.

At first everything seemed ok, but after 10 minutes, both traces disappeared. Got channel a back by adjusting Y, but can't get it more than 1 cm from the bottom. Channel B can't be seen at all.

Any ideas ?

I've just started diy again, it'll be good to be able to use it....

Thanks

Geek · 21st March 2007, 06:39 AM

Dirty controls/trimmers?

nickds1 · 24th March 2007, 02:28 PM

TekScopes group on Yahoo is your friend

firestorm · 12:32 PM

any one taken one of these apart before ?
or better still fixed one?

I'd like to get it going before starting my next project.

Cheers

nickds1 · 21st August 2010, 02:25 PM

Quote:

Originally Posted by firestorm

any one taken one of these apart before ?
or better still fixed one?

I'd like to get it going before starting my next project.

As I said in my previous post, the only really place for support for this would be the Yahoo TekScopes group. They are very good and very helpful - what's more, a number of ex-Tek service engineers hang out there...

Cheers

firestorm · 21st August 2010, 02:51 PM

point taken - thanks for reminding me Nick

20th March 2007, 11:26 PM	#1
firestorm diyAudio Member Join Date: Mar 2004 Location: Surrey, UK.	Tek 2235 CRO broken :-( Hi, I've got a Tektronix 2235 dual trace 100Mhz scope, which I've had for years. I haven't switched it on for a couple of years till last night. At first everything seemed ok, but after 10 minutes, both traces disappeared. Got channel a back by adjusting Y, but can't get it more than 1 cm from the bottom. Channel B can't be seen at all. Any ideas ? I've just started diy again, it'll be good to be able to use it.... Thanks

24th March 2007, 02:28 PM	#3
nickds1 diyAudio Member Join Date: Aug 2005	TekScopes group on Yahoo is your friend __________________ Nicko "The whole plan hinged upon the natural curiosity of potatoes" - S. Lem

21st August 2010, 12:24 PM	#4
firestorm diyAudio Member Join Date: Mar 2004 Location: Surrey, UK.	any one taken one of these apart before ? or better still fixed one? I'd like to get it going before starting my next project. Cheers Last edited by firestorm; 21st August 2010 at 12:32 PM.

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21st March 2007, 06:39 AM	#2
Geek diyAudio Member Join Date: Sep 2004	Dirty controls/trimmers?

21st August 2010, 02:51 PM	#6
firestorm diyAudio Member Join Date: Mar 2004 Location: Surrey, UK.	point taken - thanks for reminding me Nick

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