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SPD3303X Hiccup

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MathWizard:
How much dusst builds up in these Siglent machines? I own a few now, including a PSU, it's time I take it apart again and see if it needs vacuuming out.

Overall I'm very happy with my SPD3303X. I never really need high power, or anything that seems to stress it much. Someday, I should do some loads test with it on a scope, and maybe check a few temps.

I want to get another 1, or maybe the newer version.



Hey Tautech, I was trying to find some page to ask you about this memory upgrade to some very expensive Siglent scope. So markup's aside, is this just the price of some super fast memory, or do they upgrade other chips too ??
$4,500 maybe CAD, but thats still ~3,150USD
https://www.transcat.ca/brand/siglent-store/oscilloscope/siglent-sds7000a-1gpts-memory-depth-upgrade-to-1-gpts-for-sds7000a-oscilloscopes

Seems like a lot of money. And how does all the memory chips in these super expensive TE compare to GDDR6 like in the best GPU's money can buy ?

tautech:

--- Quote from: MathWizard on September 26, 2024, 10:33:12 am ---Hey Tautech, I was trying to find some page to ask you about this memory upgrade to some very expensive Siglent scope. So markup's aside, is this just the price of some super fast memory, or do they upgrade other chips too ??
$4,500 maybe CAD, but thats still ~3,150USD
https://www.transcat.ca/brand/siglent-store/oscilloscope/siglent-sds7000a-1gpts-memory-depth-upgrade-to-1-gpts-for-sds7000a-oscilloscopes

Seems like a lot of money. And how does all the memory chips in these super expensive TE compare to GDDR6 like in the best GPU's money can buy ?

--- End quote ---
The 1GB memory depth license is just a SW switch, albeit an expensive one but probably priced to undercut opposition.

ebastler:

--- Quote from: MathWizard on September 26, 2024, 10:33:12 am ---[...] this memory upgrade to some very expensive Siglent scope. So markup's aside, is this just the price of some super fast memory, or do they upgrade other chips too ??

--- End quote ---

The price is determined by the fact that Siglent knows you could afford the SDS7000. So you must be able to afford an expensive memory upgrade too. ::)

Another way to look at it is what tautech wrote: It's enough for Siglent to price it a bit lower than the high-end competition. Then the price is no longer considered a rip-off but "in line with the market".

mawyatt:
Update on the heatsink use.

Just had another "Hiccup", so this isn't solving the bridge rectifier overheating problem.

Now we'll need to replace the rectifier as we are out of the 3 year warranty period  :(

Best,

tautech:

--- Quote from: mawyatt on September 28, 2024, 08:13:12 pm ---Update on the heatsink use.

Just had another "Hiccup", so this isn't solving the bridge rectifier overheating problem.

Now we'll need to replace the rectifier as we are out of the 3 year warranty period  :(

Best,

--- End quote ---
Another replacement bridge fitment solution using a standoff popped up a day or so back here:
https://www.eevblog.com/forum/testgear/siglent-spd3303x-power-supply-turn-off-and-on-all-the-time/

There's 2 connectors from the front PCB to Power PCB that can be swapped so take care to mark them so they don't get swapped.
Full removal and refitting of the front PCB is straightforward other than that.
IIRC you will require 3 sizes of Torx drivers.

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