Electronics > Projects, Designs, and Technical Stuff
Should we do a Schematic Bank?
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StillTrying:
Should we do a Schematic Bank?

No.
Imagine if it was just limited it to one finished 30V 2A PSU, there'd still be an almost unlimited number of variations and "improvements".
coppercone2:
I think it would be sick for a EEVblog schematic bank but lazy corporate thieves would pilfer the shit out of it
coppercone2:

--- Quote from: Nusa on December 14, 2018, 09:00:10 pm ---
--- Quote from: blueskull on December 14, 2018, 06:36:29 pm ---Sadly, many have lost the capability of designing anything without simply lifting reference circuit from IC datasheets.

--- End quote ---

You can't lose what you have yet to learn. Which is the stage many such project-types are at in their education.

At least when they're on IC datasheets, you stop looking at them when the IC becomes extinct.

The biggest problem with old schematics is that they're old. The specified parts have become obsolete and are hard-to-find, expensive old stock, or completely unobtainium. Finding modern replacements with similar specs and integrating them into the design often requires skills not yet learned.

The other problem is that schematics are not the whole story. e.g. If you reproduce the circuit perfectly, but neglect the thermal design with heatsinks and airflow, you aren't going to get the specified performance.

--- End quote ---

Realistically for the labor most schematics are actually very build able, its just their not mass producible without cost replacement engineering.

Even something like a thermal-rms converter chip that LT used to make that was on ebay for like 50$ a while back. The specs of the measurement system are unique enough that if you bother to make the PCB or dead bug the thing like in the app note, test and make a chassis it will cost you like 5-10 hours at least, so paying 50$ for the IC is actually not that bad, similar to going out to the movies and having a decent lunch.

I dunno, I just don't really see it too much. Maybe with weird digital chips.. but I was able to buy entire lots to do full board replacements of ancient parts with little trouble, it was just noticeably more expensive then digikey or alibaba, but considering I am trying to resurrect the dead...
 

IMO mostly not worth your time to do parts replacement and cost engineering (even companies don't do this for small production runs, I mean its like kinda looked like but people are like wtf r u doing when you ask too many questions about market tendancies and stuff). What I recommend is buying 3 and carefully taping 2 into the chassis when you are done. *

*I am only saying this here because I think people get a bit crazy sometimes I read posts and hear things that make me think something along the lines of people wanting to do corporate espionage to see if the DC DC converter for the ring light they built around their toilet will go obsolete in 25 years........................   :o its already fun and very challanging there is no reason to go bald to potentially save 5$ over the next 10 years incase lighting strikes
T3sl4co1l:

--- Quote from: coppercone2 on December 14, 2018, 10:26:10 pm ---I think it would be sick for a EEVblog schematic bank but lazy corporate thieves would pilfer the shit out of it

--- End quote ---

Let them.  They're worth every cent paid.

I say this as the owner of my corporation. ;D

Tim
coromonadalix:
Who would maintain this holy grail of schematics ?

KO4BB  is already an good place to find some stuff ???



@StillTrying    the 30v 2 amps  pus  without any brand or model  should not have a place at all.

You need : Company brands and their officials models,  nothing else.

If not  you'll open an pandora box and it will eventually become an huge mess, and the initial idea will be gone.
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