DIY Logic Analyzer Probe and Pods for Siglent (and LeCroy) scopes

[Martin72]

I wanted to fix the criticized positions first, because e.g. the front panel for the display is actually thinner than 0.8mm, so I had canceled everything.
Most parts were titled as OK.

[TERRA Operative]

Ok, my turn to make one of these.... Was any further development done to improve the performance or is as it stands good enough?
Did anyone ever take a look inside the Siglent probe?

I think I wouldn't mind having a go at modifying the design a little to match the Siglent with the way the probes attach, maybe using some 2.54mm rectangular header sockets.

[tautech]

thanks a lot mate, that saved me a lot of trouble :-)

could have been cool if only they existed in correct color codes from 0 to 9
so i have to find a way to add a label, and if they are colored at the same time, i end up being confused
since i cant turn off my brains color decoder

Coloured LA/MSO channel tabs are being rolled out into all models that support MSO.
Then if you have coloured grabbers you might be able to match them up to the displayed tabs. 

[TheDefpom]

Then if you have coloured grabbers you might be able to match them up to the displayed tabs. 

Damnit, now I need to buy coloured grabbers...

[tautech]

Then if you have coloured grabbers you might be able to match them up to the displayed tabs. 

Damnit, now I need to buy coloured grabbers...

Link listed in my reply #13, long expired but the ePay listing description might help with a search.
Be sure to get the same style as OEM for best holding power.
Pics here:
https://www.eevblog.com/forum/testgear/diy-logic-analyzer-probe-and-pods-for-siglent-scopes/msg3496458/#msg3496458

[KungFuJosh]

Are you referring to the E-Z Hook brand grabbers? I have them in my list: https://www.amazon.com/dp/B00R3R7IVC/

[TheDefpom]

Damn, those aren't cheap.... so I only got 2 pairs, you always need a spare.

[tautech]

Are you referring to the E-Z Hook brand grabbers? I have them in my list: https://www.amazon.com/dp/B00R3R7IVC/

Perfect. 
10 for $34 is well priced compared to the 10 lot of Tek grabbers a mate and I shared 20 yrs back, they were $5ea !

[tautech]

Another bit cheaper $21 set linked by ePay:
https://www.amazon.com/10PCS-Grabber-Jumper-Analyzer-Colors/dp/B083PRVPCR/ref=pd_vtp_h_pd_vtp_h_d_sccl_3/143-5889884-9612055?

[ebastler]

Another bit cheaper $21 set linked by ePay:
https://www.amazon.com/10PCS-Grabber-Jumper-Analyzer-Colors/dp/B083PRVPCR/ref=pd_vtp_h_pd_vtp_h_d_sccl_3/143-5889884-9612055?

Wrong colors though, if you are after a match with the new SDS display.

[KungFuJosh]

Another bit cheaper $21 set linked by ePay:
https://www.amazon.com/10PCS-Grabber-Jumper-Analyzer-Colors/dp/B083PRVPCR/ref=pd_vtp_h_pd_vtp_h_d_sccl_3/143-5889884-9612055?

I wouldn't trust those, especially not for the $10 savings. Some of the reviews mentioned the springs failing, or the grabbers being too soft metal to properly hold things.

[fredo_]

Hi there,
Did anyone try the PCB Assembly service of JLCPCB for oz2cpu's design ?
Maybe someone as working BOM and CPL files ?

[fredo_]

Well I'm proud to join the team of oz2cpu's design probe owners ! 
I ended up ordering on JLCPCB with PCB assembly (single side). Boards arrived with half the 120R resistor soldered on the scope board (upper side) and the 86K6 and 120R soldered on the pod boards :

Soldering the missing 120R resistors and the 8p2 caps stacked on top of the 86K6 resistors was not a simple task for me, as it was my first time doing SMD stuff
I ended up doing it with solder paste and an hot-air gun (couldn't make a clean work on 0603 parts with a soldering iron...)
Everything works as expected (tested with an ESP32 board providing approx. 10Mhz output)  :

[fredo_]

I ended up ordering on JLCPCB with PCB assembly (single side).

In case someone needs it, here are the BOM and pick and place files I used.

[mawyatt]

Ok, my turn to make one of these.... Was any further development done to improve the performance or is as it stands good enough?
Did anyone ever take a look inside the Siglent probe?

I think I wouldn't mind having a go at modifying the design a little to match the Siglent with the way the probes attach, maybe using some 2.54mm rectangular header sockets.

If you go back and start searching with our inputs (like #72 or earlier then onto #138) we posted a version of Thomas's that included the ability to mimic the responses that the OEM Probe produces after modeling the probe with Rob's help. Our version worked well from the start with both twisted-pair ribbon cable and simple ribbon cable (didn't have any micro-coax) that we never followed up on optimizing the probe & cables.

This might be a good start if one wants to squeeze the most out of these probes.

Best,