Electronics > Beginners
Alternatives to Oscilloscope
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james_s:
Well when I was a kid someone gave me a partially working 5MHz scope and while it was certainly not ideal, it was much better than nothing. When budget does not allow you to have what you want, sometimes you have to get by with what you can get. Lots of perfectly working analog scopes collecting dust, and others that have minor issues like dirty switches that can easily be fixed or worked around. Just saying it's worth asking around in the absence of better options.
tggzzz:

--- Quote from: james_s on October 01, 2019, 06:15:46 pm ---Well when I was a kid someone gave me a partially working 5MHz scope and while it was certainly not ideal, it was much better than nothing. When budget does not allow you to have what you want, sometimes you have to get by with what you can get. Lots of perfectly working analog scopes collecting dust, and others that have minor issues like dirty switches that can easily be fixed or worked around. Just saying it's worth asking around in the absence of better options.

--- End quote ---

We are in violent agreement!

Necessity is the mother of invention, and not having the "right" tool makes you think more carefully and develop more carefully.
Gyro:
It would still be useful if the OP could come back with their definition of "cannot afford" in monetary terms. If it is 'I have no money' then it's down to using whatever they already have or 'beg borrow or steal'.

Hopefully that is not the case?

@Oslaw: Explaining your situation will focus the advice much better and save peoples' time.


EDIT: From looking at your previous posts, I see you are in Nigeria and ebay is slow there. Unfortunately that may be a problem for some of the above options (many of which are ebay or Chinese marketplace sites).
uktron:
Why have you not oscilloscope? Is it to expensive for you?
schmitt trigger:
I believe that Gyro has provided a most comprehensive list  of options. Choose one of them.

Having said that................That should not preclude you from doing some simple projects and troubleshooting them with a DMM; specially one which has extra features like frequency measurements and the like.

Now, a logic probe should be very easy to build, and will provide you visual clues of logic states, pulses or transitions.

If you are into audio, you can build a simple signal tracer with a JFET and a LM386. Add a signal diode and you can demodulate some RF signals.

There are many sample circuits on the web.
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