Electronics > Beginners

Oscilloscope oddities

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GadgetBoy:
Well, I gave up using the signal generator (Hiland DDS signal generator), and muntzed an old transformer based DC power brick. The results were exactly what I was looking for. I guess I'll be using this from now on, until I can afford more sophisticated equipment (I'm working on a low budget).

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JS:
That seems niceer, single wave rectifier makes a better picture, to go for full wave you see what you was getting, which is not too far off of what I would expect from your setup.

--- Quote from: GadgetBoy on August 14, 2018, 12:16:07 am ---(I'm working on a low budget).

--- End quote ---
We can tell, and we've all been there, I never got one of those DSOs but I did have a nice sound card as I've worked on audio for a long time. A month or two ago, after being over 15 years into this, I got my first scope, a DS1054Z and is a blast. Only now I can justify the nice toys as I'm working with them and they end up paying for themselves. I wish the videos start paying for your toys, that would be nice!

JS

GadgetBoy:

--- Quote from: JS on August 14, 2018, 05:02:31 am ---That seems niceer, single wave rectifier makes a better picture, to go for full wave you see what you was getting, which is not too far off of what I would expect from your setup.

--- Quote from: GadgetBoy on August 14, 2018, 12:16:07 am ---(I'm working on a low budget).

--- End quote ---
We can tell, and we've all been there, I never got one of those DSOs but I did have a nice sound card as I've worked on audio for a long time. A month or two ago, after being over 15 years into this, I got my first scope, a DS1054Z and is a blast. Only now I can justify the nice toys as I'm working with them and they end up paying for themselves. I wish the videos start paying for your toys, that would be nice!

JS

--- End quote ---
The way it was initially setup (before I muntzed it), it was full wave rectified, and that waveform looked great, too.

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GadgetBoy:
In case anyone was curious, here's the lovely full wave rectified signal from the transformer I found.

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JS:
Yes, but now you have 32Vpp sinewave against 8Vpp, the diode drop is much smaller than the signal so it looks much closer to ideal.

JS

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