Products > Test Equipment
Choosing an oscilloscope
<< < (4/25) > >>
tautech:

--- Quote from: Fungus on October 03, 2020, 02:46:58 am ---
--- Quote from: bdunham7 on October 03, 2020, 02:35:40 am ---Here (US) you can get a bottom-of-the-line 50MHz DSO from Siglent, with a warranty, probes and support, for $259.  Depending on what is available to you, another brand might be a better option.

--- End quote ---

OTOH you might want more than 2 channels...

--- End quote ---
OTOH many don't.
bdunham7:

--- Quote from: Fungus on October 03, 2020, 02:45:48 am ---This needs settling. Does anybody have one and a meter to measure the power use?

--- End quote ---

Yes, or I did.  I've overhauled a 2235 and a 2213A recently and I use the iso-variac, so I see the current.  Both of them use less than 0.5A, IIRC, and they don't have a fan--they barely get warm except for the power supply transistors which run just below their melting point.  I only have a 2221A at the moment and it uses 0.8A, but it has a fan and a whole DSO/logic board to run. 
tautech:

--- Quote from: bdunham7 on October 03, 2020, 04:11:43 am ---
--- Quote from: Fungus on October 03, 2020, 02:45:48 am ---This needs settling. Does anybody have one and a meter to measure the power use?

--- End quote ---

Yes, or I did.  I've overhauled a 2235 and a 2213A recently and I use the iso-variac, so I see the current.  Both of them use less than 0.5A, IIRC, and they don't have a fan--they barely get warm except for the power supply transistors which run just below their melting point.  I only have a 2221A at the moment and it uses 0.8A, but it has a fan and a whole DSO/logic board to run.

--- End quote ---
:o
You really need qualify this with your mains voltage as 0.8A*235VAC = 188W  :wtf:
Any modern DSO will at most use just 1/3rd of that.

Yeah I know, you're on 115VAC but you'll now get the point.  ;)
0culus:
My 1960s boat anchor 585A uses over 700 watts. Fight me.  >:D >:D >:D

 :-DD
bdunham7:

--- Quote from: tautech on October 03, 2020, 04:19:00 am ---You really need qualify this with your mains voltage as 0.8A*235VAC = 188W  :wtf:
Any modern DSO will at most use just 1/3rd of that.
Yeah I know, you're on 115VAC but you'll now get the point.  ;)

--- End quote ---

I'm just reporting the data.  You can do the math!  :)

Oh, and the voltage would be exactly 120VAC (adjusted) and I don't know the PF, so....

Anyway, a 2235 runs as cool as a cucumber.  And as quiet as one, too.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod