Oscilloscope

[makjoe]

Hello everyone , 

 I just  bought  one analogic oscilloscope  Fluke  PM3370B  60MHZ  so I am real  hobbyest  and I am very happy

 I have two questions : First  , Is right decision recaping  the PSU due to years  ?  and  second  Is enought scope probes hantek 100mhz or you recomended buy high quality brand .

I expect it use to check and build power supply  audio and general audio design.   

Regards 

[danadak]

I recap on failure, most of the time. Some scopes I have back to late 1940's caps still good,
even the electrolytics (although I have not actually measured their performance). Decision
depends on equipment. I have recapped from get go SW receivers because of a history of
cap failure.

You should be OK with Hantek probes you mentioned.

It does not hurt to check the scope alignment if you have the gear to do it. I also clean
switches and any socketed parts lift them slightly and press back into sockets. In Tek scopes
they had transistors in PCB/solder thru hole connections, I move them a bit to break any
oxidation. Be careful of HV, make sure you discharge all caps and CRT before you do any
of this work.


http://www.crtsolutions.com/CRTSafety.pdf



Regards, Dana.

[makjoe]

Ok Dana , I will try to check it like you said me .

Thank you so much   

[Old Printer]

Congrats on your new scope, looks like a nice one. User groups and forums are a good source of info on a question like this as often that info is particular to the make and model/age. For older analog scope I have stuck to TEK primary because manuals are easily obtainable and there are lots of people rebuilding them to ask questions of.  I am curious if Fluke made their own scopes or had someone else manufacture them.

[makjoe]

Hi Old Printer  ,, Thanks

I dont know if Fluke made it  but there is several version of Philips with the same aspect .  I have found the service manual , software and user manual ,so happy .

You know , to audio maybe need 1 mhz and I have 60 Mhz , plus 200Ms/s sample rate , its more than enought to me.

Regards

[cowasaki]

I used a similar scope to that in my first electronics job but the 100MHz version.  Nice scope and very usable.

[Old Printer]

A poke around ebay shows several listed as Fluke with Phillips badges on them and "Fluke" nowhere to be seen. but I have never really looked at either brand. That said, Phillips is a very respected name and from what I hear, I would take a nice one in a second.

[PA4TIM]

Fluke bought the Philips T&M division. I had here a Phluke  scope with both Philips and Fluke logo's See: http://schneiderelectronicsrepair.nl/?p=527
I'm not a recap fan. Most of my gear still has the original caps.

[makjoe]

 Hi , PA4TIM 

 Thanks for the info , I will try to search Philips into the unit 

73  EA1HXW..

[makjoe]

Hi , I opened the scope and all chips are Philips ,,,capacitors has perfect values in power supply and branded United Chemi Con. 

[james_s]

If it works fine then just leave it alone. There is some risk of causing damage when re-capping so the old saying applies "If it ain't broke, don't fix it."

[JacquesBBB]

Check the voltage and ripple of the  power supply. If everythin is fine, just leave it.
Otherwis, some caps may be sik.