Looks like transistors have to be redrawn. We need a big fat 2N3055 in a TO3 case. It has to be distinguishable from a TO92 case. And power resistors need to be beefy. 200 W and you’ll draw your cicuit on a DIN A2 sheet.
I personally wouldn’t want this. But if you need it, you can design your own components to scale, with al the original etchings and a bent pin here and there. I prefer my 7406 with a datecode 7244. It is easy!
The way schematics are being drawn has evolved over decades. It is a clear language understood all over the world. Don’t break it!
2 Likes
You can make your own two versions of LM339 symbols. One is separate: symbol with two or three components as shown by @jmk. Other version is symbol as shown by @m852. But my suggestion: use bigger box so smaller OpAmp symbol can fit inside.
I realize the two version has it own advantages. Me myself has some symbol with two versions.
Hi Bob, Yes I want to use the symbol you show in the schematic. Only one problem. How do I get it? It is not in the symbol list. thanks.
I’m not Bob but, will attempt to answer… video below shows starting the symbol making process… you can’t see that I selected the Library folder but can see the message before selecting it (off screen)
Thanks to @BlackCoffee for getting into some details that I would not have.
In my opinion, making (at least some of) your own symbols is part of the pleasure of using KiCad. It means that you will no longer be constrained to use only what you can find. I like my symbols to have shorter pins for example (usually 50 mils) to pack the schematic more tightly. Otherwise, putting the +Power on one half of a dual and the ground on the other half as suggested is a completely reasonable option.
Below I show my two different symbols for BAW56. They both represent the same component and footprint. I use whichever symbol fits more nicely into the layout of the schematic diagram.
If I want it, no problem. I make it. Making symbols in KiCad is not difficult at all. You will enjoy using it more once you have learned to make your own symbols.
2 Likes
Since always (in Protel and in KiCad) I have them both in one symbol (using DeMorgan). Same for BAV70 and BAV99. Thanks to that I don’t need two names (-1, -2) so I can have only one record for each of these elements in my spreadsheet used to generate BOM.
2 Likes
I have never used DeMorgan
(Morgan automobile)
But yes having two different part numbers is a minor nuisance. I ought to look into using that option.
I moved the discussion of De Morgan alternate symbols with some electronic and logic history to a new thread, as it’s drifting away from the original thread.
This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.