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Siglent SDS1104X-E vs. Rigol DS1054Z Advice?
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KungFuJosh:

--- Quote from: Old Printer on August 21, 2018, 12:41:21 pm ---I read a lot about tube amps, I have a Vibrolux Reverb and a Vibro Champ that I bought new in the early 70's and after spending much of their life in the closet they are in need of recapping. Most of the old school amp guys feel a basic analog scope of 20Mhz is all that is needed for valve amp work. I am sure that goes out the window when you switch to solid state and digital effects. I have a couple old Tektronix scopes, but have heard from several places that off-brands like Leader and Iwatsu can be better values. If you have said you already have one of these I missed it.

--- End quote ---

Yeah, that's what everybody in the industry goes for. Cheap, old school 20Mhz scopes. A fairly well-known amp tech recommends buying a used scope for $100. That's not for me at all. I may never use many of the features of this scope, but I do like some of the extras I've used so far (for example, measuring the input frequency).

What brand caps are you going to use on the amps? I wouldn't recommend buying into the brand hype guitar nuts get addicted too. Use your EE brain and stick with 1 brand of high quality caps per amp unless you really need the vintage aesthetic. ;)

Thanks,
Josh
KungFuJosh:
Just to throw this out there, since I probably don't need 4 channels (yes, I know most of you love 4 channels ;) )  - what do you think about the SDS1202X-E vs the 1054Z for me?

The difference in price will be about $25 more excluding any potential shipping... Should I consider that 2 channel model for an FFT function I might not use, or stick with the Rigol for 4 channels I might not use? I'm such a pain in the ass, I know.  :-DD

Thanks,
Josh
Fungus:

--- Quote from: KungFuJosh on August 21, 2018, 08:27:12 pm ---Just to throw this out there, since I probably don't need 4 channels (yes, I know most of you love 4 channels ;) )  - what do you think about the SDS1202X-E vs the 1054Z for me?

The difference in price will be about $25 more excluding any potential shipping... Should I consider that 2 channel model for an FFT function I might not use, or stick with the Rigol for 4 channels I might not use? I'm such a pain in the ass, I know.  :-DD

--- End quote ---

If we're going down that road you should probably get the GW-Instek - four channels and a better FFT.  :)

Seriously though: A PC sound input will do a much better FFT than the Siglent/Rigol/GW-Instek ever can (a 16 bit ADC will win every time!) but there's no way you can add a couple of extra channels to a 2-channel 'scope.
tautech:

--- Quote from: KungFuJosh on August 21, 2018, 08:27:12 pm ---Just to throw this out there, since I probably don't need 4 channels (yes, I know most of you love 4 channels ;) )  - what do you think about the SDS1202X-E vs the 1054Z for me?

The difference in price will be about $25 more excluding any potential shipping... Should I consider that 2 channel model for an FFT function I might not use, or stick with the Rigol for 4 channels I might not use? I'm such a pain in the ass, I know.  :-DD

Thanks,
Josh

--- End quote ---
Check the comparison chart in the first post here:
https://www.eevblog.com/forum/testgear/siglent-sds1204x-e-released-for-domestic-markets-in-china/
KungFuJosh:
Uh oh. I might have found something useful in the SDS1104X-E's favor. It looks like that can handle 400VDC input according to the datasheet, and the Rigol only 300VDC. Am I reading that right?

Assuming I'm reading that right, that might be useful. Or should I be more interested in a differential scope for that voltage level? A few spots on my amps go above 300, usually not above 350 for most circuits I build. I dunno if I'd ever connect there, but, ya know...or never know.
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