How much this cro worth in states and canada ?

[EEstyleZ90]

Hi all.

it is a hung chang 5502 , korean , 80s model , 20 mhz.

I wonder what its worth now .

 

[augustinetez]

$20 if it is in working order, nothing if it has a fault of any sort.

These were made in the millions under various names back then and you can often pick them up for free these days - I've still got mine, but it hasn't been used in the last 20 years or more.

 

[Nigel Goodwin]

Exactly, pretty worthless these days, I turned down four free working CRO's a few years back.

 

[ZipZapOuch]

I gave mine to a movie studio requesting props from a 1980s electronic lab a few years ago. The exact same scope was sold under various brand names in the U.S. I'd call it a boat-anchor if you have to put any time into repairing or tuning it up - if you don't need a boat anchor, charge a disposal fee to the person trying to get rid of it.

 

[EEstyleZ90]

Alright , I see.

I am using it still in checking switching signals.

I hope it will prove useful in other applications.

This is one of the best things my father gave me.

 

[Nigel Goodwin]

Alright , I see.

I am using it still in checking switching signals.

I hope it will prove useful in other applications.

This is one of the best things my father gave me.

If it's all you have, it's still a VERY useful device - I still have two at home, but I've not used them for a good few years now. However, resale value is extremely low, as digital scopes are what everyone wants.

I was given (yet another) old scope a few years back, it was an old storage type, I gave it to a friend - he contacted the original manufacturer, and donated it (for free again) to be exhibited in their 'museum', as they didn't have one of that model.

 

[EEstyleZ90]

If it's all you have, it's still a VERY useful device

I am sure it is.

 

[danadak]

DSO's have a inherent problem associated with aperiodic transients due to the frame rate.
In fact these scopes often tout their less than magnificent frame rates, typical small benchtop,
in the 400 - 500 K

For these reasons a good analog scope still quite useful depending on your design work.

Important Parameters in Choosing an Digital Storage Oscilloscopes (DSO) - Part 1 - Technical Articles

This article discusses the important parameters to remember in choosing the right digital storage oscilloscope for designing and testing circuitry.

eepower.com

I have a Tek 7104 in my collection that still gets turned on occasionally. Pure analog BW of 1 Ghz.
No funky memory limitations, true real time not pretend real time, no front end massaging in
signal path, its all good. In fact being a plugin scope I have most of the plugins made for the
series, making it a broad based test system of much capability. Like its TDR or its diff amp down to
10 uV/div (but not at 1 Ghz). Or its curve tracer.....

7000-series plug-ins - TekWiki

w140.com

Also have a scope that needs > 1 KW to turn it on. Where else can one get a heater and scope
in same package for a cold lab. Shes a beauty......dual beam, what more could one ask for

Regards, Dana.

 

[augustinetez]

what more could one ask for

Cheaper electricity ?