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I like the Rigol and Siglent brands you mention. I have a Rigol scope and a Siglent spectrum analyzer, but here's another option that might fit your needs?

I'm pretty impressed with a GW Instek MDO-2204EX scope I got this weekend.
It's a 6-in-1 multi instrument I bought at

1 A 4ch 200MHz scope with individual channel controls
   8" 800x480 TFT with 12 soft keys for quick menu navigation
   40M sample memory
   120K waveforms/s
   High resolution 1M FFT with very fast update rate
   29K memory segments with a very useful search function
   Advanced math with user definable functions
   Downloadable apps:
      Go-nogo with HW output on the back for automated testing
      Digital volt & frequency meter with readout on screen capture
      Data logger up to 1000h with event counter
      Digital filter LP/BP/HP up to 500MHz
      Mask function to capture rare events
      Bode plot using the built in sweep generator
2 Serial bus decoder with UART, SPI, I²C, CAN, LIN
   The search function can use bin, hex or ASCII with wild-cards
3 Spectrum analyzer from DC to 500MHz
   Useful for audio and vibration (my Siglent SSA3021 only goes down to 9KHz)
   It's also much easier to operate (no switching between scope/FFT mode)
      Centre, span, start and stop frequency control
      Sample, min, max and average detection
      Linear, dBV or dBm display
      Windows: Rect.(single shot), Hanning/Hamming(periodic), Blackman(amplitude)
4 Dual 25MHz 200Ms 14bit Arbitrary Waveform Generator
   On board waveform editor and PC interface
   AM, FM, FSK and sweep modulation (independent or tracking)
5 Independent 5000 count digital multimeter
   Vdc, Vac, Idc, Iac
   Ohm, Beep, Diode
   Thermocouple °C/F type B,E,J,K,N,R,S or T
   Readout on screen capture
6 Dual 5V 1A power supply
   Individually adjustable or 3,3 and 5V presets
   Overload protection
It's also got a calibration output for self-calibration.

I haven't had much time to go through all the details yet, but I've been through all 6 instruments and all the things I've tried works as expected. It costs a bit more than the Rigol and Siglent you mention, but considering what you get I think the price is very fair. There's no need to hack it because everything is already unlocked from the factory. It's really easy to include AWG, DVM and DMM readings in your reports with the screen capture instead of taking pictures.

It's also a nice form factor if you're working with embedded software development. It will fit on a desk with room for a couple of decent size monitors and power a development board. You've got the AWG for exciting the inputs and a wide selection of measurement options. The only thing I miss is an electronic load to test the outputs, but all-in-all it's pretty complete for the work I'm doing. :)

Best regards
Manufacturing & Assembly / Re: Neoden 4 pick and place
« Last post by PrintTec on Today at 02:52:45 AM »
to all of you interested in a Neoden machine or if you need support;

please contact Neoden or a Neoden distributor only!

do not ask anybody else for support than the OEM or distributor in order to avoid damage

there are several systems and versions and we are willing and able to help you properly

please visit
for Europe, USA or EMEA distribution and support; we stock the product for you!
I find magnet wire to be unruley and springy in these diameters.
This one has to be the most expensive damage

Was there really no one fired? I'd be surprised, given that I'd call NOT checking for the presence of those 24 bolts "gross negligence".
So it all depends on the B11 component, then?

I will mount this, and report back to!

Would be fun to know what made it blow in the first place..
Could a heater circuit that for some reason, got to low impedence do this?

Dear RX8pilot,

We can do 0402 with Neoden and even 0201!

Best regards,

Robert Joosten
Beginners / Re: Electronics primers, course material and books
« Last post by Mark.h.b on Today at 02:45:14 AM »
Glad I found this, the NEETS is a good read for the noobs as myself but people are actually selling it on eBay for around $4.00 usd !!

Thank you for sharing.
Yes the area to the left of your Vgs curve is the Miller event/time/plateau. This is the linear region of the FET. Any modulation here is amplified to the output. Power Switch FETs do not like to hang out during this time, they're made to blast through it and get into the enhancement region and have a low Rds. Wiggles are bad here IMO. One could make the argument that a fast turn on with a wavy Vgs through the Miller event is okay. It essentially only adds noise, your thermal performance is better the faster u switch. But that noise will get you so i recommend a nice controlled switch.

Just google "FET miller event" and take a look at those top app notes and other info. Lots of good things there.

Get some load under the controller to really see what's happening. Even making a Wye connected Power Resistor arrangement and telling your controller to blindly commutate @ some predefined duty cycle is a great way to get safe current flowing through the system. Bypass whatever phase angle/commutation state system your using has have it tick through all the phases as if it was running the motor at 60RPM or some such number. Or if you're running off hall effect sensors. leave that portion of the motor hooked up and connect power Wye to the phase output and simply turn the motor by hand - with a limit on duty cycle, and appropriate resistance values of course!
Other Equipment & Products / Re: SmallSMT - Discussion Thread.
« Last post by PrintTec on Today at 02:43:29 AM »
dag Marc
wat ben je allemaal aan het rommelen?
o, o, o...
General Chat / Breaking the Ledger Security Model
« Last post by bitwelder on Today at 02:42:52 AM »

Not much impressed by the general behaviour of the Ledger team
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