bedini, the daftman SS charger & MHOP

[MarkE]

I look at this usb scope, and even if it can be used, no way can i love it.

Well it all depends on what sort of circuits you want to look at.  If you need more bandwidth than 10MHz then you will need to spend more than $75. for something new that can look at that for you.  I think it is a very good value for hobbyists especially for people working with stuff that switches no faster than a couple hundred kHz such as the vast majority of circuits on these boards.  If you want a nicer 200MHz 4 channel stand alone scope then you very quickly jump up to around $2000. for new from Keysight (HP/Agilent), or Tektronix.

[TinselKoala]

I will go so far as to say that _any_ scope is better than _no_ scope.  If you have 300 dollars that Tek 2235 is a nice deal. It is basically a higher bandwidth version of my old 2213a, same front panel controls. The delayed timebase is nice to have. But of course it does not give you numbers in boxes and only has the basic invert and add "math" functions.

But hey, that Hantek does trace multiplication, it says, and it even does FFT (meaning a spectrum analyzer display). For the price of taking your family to see a movie, I think it would make a great addition to any scope-less workbench. That Hantek, plus a good analog scope like the 2235, would be a pretty reasonable start on an electronics test bench.

[tinman]

You could try this one that i came up with way back when.
A few of the guys had some good results from this circuit.
Please excuse the early day pretty picture circuit drawing

https://www.youtube.com/watch?v=5HwUuPQn2W8&feature=youtu.be

[qtrhack]

You could try this one that i came up with way back when.
A few of the guys had some good results from this circuit.
Please excuse the early day pretty picture circuit drawing

https://www.youtube.com/watch?v=5HwUuPQn2W8&feature=youtu.be

i've got two 2n3055s with your name on it when i get the chance 

thx!!

[ayeaye]

Hantek 6022BE, vertical resolution 8 Bit, what the hell? Gain range 20mV-5V, 8 Steps, what? And it kindly offers software, only in Windows. There is software in Linux for Hantek USB scopes http://www.openhantek.org , but it is only tested on Hantek DSO-2090.