Beginners Guide to LTSpice for Guitar Pedal Builders, Part 1: Adding Components
ฝัง
- เผยแพร่เมื่อ 10 ก.ย. 2024
- In this series we will go over using LTSpice for things more commonly used for guitar pedal builders. In this video, we will go over adding components not in the default install, such as diodes, JFETs, and op-amps
Download LTSpice here:
www.analog.com...
LTWiki:
ltwiki.org
LTSpice Parts, including op-amps:
github.com/eri...
LTSpice Playlist:
• Beginners Guide to LTS...
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Awesome, I've always wanted to learn spice. I'll be watching this series
I've always wondered why there are so few components included in LTSpice, so thank you very much for an understandable explanation on how to add some more!
Great idea for a series of videos. I've been using LT for years, and boy I wish there was something like this back when I got into it...
Excellent video, can't wait till the next one! Thanks.
yesss i've been struggling with this specific topic for a while now. finding and importing models is not straightforward at all. looking forward for the rest of the series
Thanks for this, I'm REALLY looking forward to the series.
Thank you for this series -- I've always wanted to understand how to use LTSpice. I look forward to the next video in this series.
Also, please consider a series on how to use _free_ software and minimal & affordable hardware to "make" test instrumentation for audio gear.
Love these videos and this series is going to be the best one!! Thank you!
This is great! Thanks for doing these. Looking forward to the rest of the series
Excellent video and impeccably explained as always! All ready for the rest of the series now 😃
I love your content!! Looking forward to more in this series!!!
Great video- fascinating.
Anyone get the TL072 op-amp symbol to open on Mac? Getting an Unknown Symbol Syntax error
I found someone else who had a similar issue. It might be the path of where "downloaded" is at. It gave him chinese characters where the path was /Users/john/Library/Application Support/LTspice/lib/downloaded/TL072-2.301, but got it to work when it was moved to /Users/john/Documents/LTspice/downloads/TL072-2.301 and then did the procedure.
@@erikvincent5846 yep got the Chinese characters too. I’ll try the path move thanks!
I have this problem too, and changing the path did not fix it.
@@joshgreen19 when you open LTspice you have to select "More Choices" then "Another type of file" and then open the 301 file
@@cematra I have just tried this and not had any luck :(
Thanks so much for doing these videos. I was wondering if you knew where I could find the LTSpice part file for the LM386 IC? Preferably the LM386L or something similar. I tried searching online, but had no luck.
what about adding the 1N4004? i've seen this in some schematics for pedals, nevermind a google search led me to someone else who had it in their file.
definitely more videos like this and point to point soldering ideas would be great, also what components are good to salvage from old electronics to make fun pedals or amp. :D
You are the man! Thanks so much for this.
i don't have the "lib" folder (I'm on macOS 11)
Same. No reply
I love you.
Thank you this is very helpful! I've tried to add some additional op amps like the LM833 but there are a bunch of files, not a single .301 file. Can you point me in the direction to add to LTSpice?
Possibly dumb question here: You moved the Window line under symattr in the tlo72 file up saying you wanted to keep it but then you deleted it when pasting over the op amp, was this intentional?
0:31 genius. really made me lol
I tried making the TL072 symbol and when I tried opening the asy file LT says "Unknown symbol syntax:" followed by a bunch of Chinese symbols. I double-checked and my text file looks exactly like yours.
Let me see if this will fit in the comments section, but here is the contents of my TL072.asy file that should be in your %userprofile%\Documents\LTspiceXVII\lib\sym\AutoGenerated folder. Also make sure where it has the ModelFile, it obviously has your user account there and not mine:
Version 4
SymbolType CELL
LINE Normal -32 -32 32 0
LINE Normal -32 32 32 0
LINE Normal -32 -32 -32 32
LINE Normal -28 -16 -20 -16
LINE Normal -28 16 -20 16
LINE Normal -24 20 -24 12
LINE Normal 0 -32 0 -16
LINE Normal 0 32 0 16
LINE Normal 4 -20 12 -20
LINE Normal 8 -24 8 -16
LINE Normal 4 20 12 20
TEXT 18 25 Left 2 TL072
WINDOW 0 16 -32 Left 2
SYMATTR Prefix X
SYMATTR Value TL072
SYMATTR ModelFile C:\Users\evincent\Documents\LTspiceXVII\lib\downloaded\TL072.301
PIN -32 16 NONE 0
PINATTR PinName In+
PINATTR SpiceOrder 1
PIN -32 -16 NONE 0
PINATTR PinName In-
PINATTR SpiceOrder 2
PIN 0 -32 NONE 0
PINATTR PinName V+
PINATTR SpiceOrder 3
PIN 0 32 NONE 0
PINATTR PinName V-
PINATTR SpiceOrder 4
PIN 32 0 NONE 0
PINATTR PinName OUT
PINATTR SpiceOrder 5
I found someone else who had a similar issue. It might be the path of where "downloaded" is at. It gave him chinese characters where the path was /Users/john/Library/Application Support/LTspice/lib/downloaded/TL072-2.301, but got it to work when it was moved to /Users/john/Documents/LTspice/downloads/TL072-2.301 and then did the procedure.
@@erikvincent5846 Hi Erik, thanks for the video. That first filepath listed above is the Mac file path for lib and unfortunately I'm having the same problem as the op. Any ideas? I've tried creating a downloads folder in my LTSpice folder stored in Documents rather than Application Support and it hasn't made any difference. Thanks :)
I was getting the error "Unknown symbol syntax: Version 4" and it was because VSCode set the encoding to UTF-16. I manually changed it to UTF-8 CRLF and it works now.
Whats the Diffrence between LTSPice and LIVESpice
Just a different interface, from what I see.
how do you handle a dual opamp like a RC4558, where you are using pins 5, 6 and 7. All of the opamp stuff I see just has pins 1, 2, 3, 4(GND) and 8(V+). A lot of the pedal deigns use both and there is a schematic symbol for UA and UB. Ub being the second stage of the opamp, pins 5, 6 and 7. Thanks, awesome video series.
What do we do for the second op amp of the TL072? Is it best practice to use the symbol created with this method twice?
In LTSpice, it won't matter if you do or don't, unlike a real breadboard example, in which, yes, you will want to properly "terminate" the second op-amp.
ignorant question: why not just add every diode and jfet and whatnot to the files? Thanks for this video, I´m quite interested in starting to mod some of my pedals.
You could. I eventually do. I just wanted to make sure everyone at least has these when I go over things in later videos.
BASS player here, I was looking for something similar, thanks to you, I'll try that software,
I was totally lost with all the choices out there.... is this notepad++???
I do tend to use notepad++ as my windows text editor. I like the color coding it does.
@@erikvincent5846 Right on, man. Been abusing it for html docs and so on.....
I have LTSpice installed, but I don't know how to use it.
The next video, we go over how to use. Just need to make sure everyone has those components first.
I think everyone might be in the same boat. You have to tinker around, do some research, and learn.
@@Papa-Kev agreed. Hopefully the next couple of videos we do in this series will help.
Why does the guitar community use LTSPICE over QSPICW? Do you use LiveSpice?
Because they are always behind. It makes no sense.
Why not QSPICE? Isn't it much better?
Adding the diodes didn't work. Neither did the jfet.
Are you sure you are using a text-only editor?