Timeline for Is this a good design & layout of an active differential 'scope probe?
Current License: CC BY-SA 3.0
20 events
| when toggle format | what | by | license | comment | |
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| Apr 19, 2017 at 14:55 | comment | added | Rocketmagnet | @Rev1.0 - Yes. I got it working, but it's hard to know exactly how well it worked, because I don't know exactly what the original signal looks like. | |
| Apr 13, 2017 at 12:32 | history | edited | CommunityBot |
replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
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| Apr 12, 2017 at 12:46 | comment | added | Rev | @Rocketmagnet: Have you ever finished and tested this project? | |
| May 9, 2013 at 14:20 | history | protected | W5VO | ||
| May 8, 2013 at 21:15 | comment | added | Don McCallum | A 50 ohm series resistor that matches the coax 50 ohm impedance which should also match the scope's 50 ohm input impedance would be good. This does provide a 2:1 reduction, but it will eliminate ringing etc. Also many op amps cannot drive much of a capacitive load. Use RG-174 as it is small and flexible. | |
| Jan 23, 2013 at 18:59 | answer | added | Wayne | timeline score: 1 | |
| Aug 11, 2012 at 23:51 | comment | added | user11446 | this is an interesting project, thanks for posting. Did you manage to get it built? Does it work? Gerry | |
| Apr 7, 2012 at 20:20 | vote | accept | Rocketmagnet | ||
| Apr 7, 2012 at 17:26 | history | edited | Rocketmagnet | CC BY-SA 3.0 |
Added a new image, thanks to The Photon
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| Apr 6, 2012 at 0:39 | answer | added | The Photon | timeline score: 13 | |
| Apr 5, 2012 at 23:51 | history | tweeted | twitter.com/#!/StackElectronix/status/188051242390532096 | ||
| Apr 5, 2012 at 23:28 | answer | added | trayres | timeline score: 0 | |
| Apr 5, 2012 at 23:01 | history | edited | Rocketmagnet | CC BY-SA 3.0 |
New rendering, and added layers.
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| Apr 5, 2012 at 21:57 | comment | added | Rocketmagnet | OK, I fixed the schematic. | |
| Apr 5, 2012 at 21:56 | history | edited | Rocketmagnet | CC BY-SA 3.0 |
Fixed positive feedback mistake.
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| Apr 5, 2012 at 21:48 | comment | added | Rocketmagnet | Ahem, er, yes. Spot the deliberate mistake to check who's paying attention... | |
| Apr 5, 2012 at 21:15 | comment | added | The Photon | Input buffer amps should probably be connected with negative feedback instead of positive feedback. | |
| Apr 5, 2012 at 20:49 | history | edited | Rocketmagnet | CC BY-SA 3.0 |
Swaped out schematic for right one.
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| Apr 5, 2012 at 20:13 | answer | added | Brian Carlton | timeline score: 1 | |
| Apr 5, 2012 at 18:41 | history | asked | Rocketmagnet | CC BY-SA 3.0 |