Products > Test Equipment
Siglent SDS1202X-E ground bounce between channels
tggzzz:
--- Quote from: tv84 on June 21, 2023, 10:16:38 am ---
--- Quote from: tggzzz on June 21, 2023, 07:48:39 am ---Solderless breadboards inherently have serious limitations. For other prototyping techniques and products with fewer limitations, see https://entertaininghacks.wordpress.com/2020/07/22/prototyping-circuits-easy-cheap-fast-reliable-techniques/
--- End quote ---
Curiously I don't see wire-wrapping in that page. :-// Used it a lot in college some decades ago.
--- End quote ---
I'll argue it was - and is[1] - a production method. No, that doesn't convince me either, since I have the wire and sockets and hand tool and even an example I threw together specifically to show the consequences of wires plus slow (LSTTL!) di/dt :)
It is useless for modern logic since every connection comes complete with a selection of stub filters :)
There's also the IDC version, which minimises the stub problem. It consists of a multilayer PCB fully populated with two-level IDC pins on 0.1" centres. Wirewrap wire is used to make the connections. I even used that once, 30 years ago. Hellish expensive PCBs, only affordable by companies.
I really ought to add them :)
[1] You can still find it buried inside some modern light bulbs, and possibly some equipment where you need to make reliable connections in the field.
tv84:
--- Quote from: tggzzz on June 21, 2023, 10:31:12 am ---I really ought to add them :)
--- End quote ---
:-+ Just for "memory lane's sake".
2N3055:
--- Quote from: tggzzz on June 21, 2023, 10:31:12 am ---It is useless for modern logic since every connection comes complete with a selection of stub filters :)
--- End quote ---
LOL :-+
BillyO:
In my opinion the best approach to prototyping, beyond something dead simple (**), these days is just have PCBs built. Even if it takes 2 or 3 iterations to get it "perfect" the cost in terms of money and effort is the lowest and if you get the hang of the technical side of it for the kind of circuit you are designing can (will) produce the best results.
** I recently used a solderless breadboard to throw together an astable multivirbator circuit working @ 1Hz to demonstrate you don't need an entire computer system and software development environment to flash an LED. It was quick and got the job done with no worries :-+
tggzzz:
--- Quote from: BillyO on June 21, 2023, 02:10:55 pm ---In my opinion the best approach to prototyping, beyond something dead simple (**), these days is just have PCBs built. Even if it takes 2 or 3 iterations to get it "perfect" the cost in terms of money and effort is the lowest and if you get the hang of the technical side of it for the kind of circuit you are designing can (will) produce the best results.
** I recently used a solderless breadboard to throw together an astable multivirbator circuit working @ 1Hz to demonstrate you don't need an entire computer system and software development environment to flash an LED. It was quick and got the job done with no worries :-+
--- End quote ---
There's truth to that, but I'll add a couple of counterpoints...
The cost with PCBs is measured in money and latency. Iterating can take a boringly long time.
Any technique can be misused, resulting in crap. Arguably a beginner is likely to produce a crap PCB due to inexperience. (Inexperience can be cured, unlike stupidity :) )
IMNSHO manhattan offers a good set of compromises between cost, time, performance, tweakability. There are other valuable techniques; use a good combination suited to the problem at hand.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version