Handy calculators for circuit design

[Tubetec]

I know its not a link to documents as such but I thought of making a post to link to online calculators relating to circuit design .
These things do a lot of the mathmatical heavy lifting for you ,you punch in a few variables and it spits out the answer.

Heres an inductor calculator Ive used and it produced  accurate winding specs for several large gauge speaker crossover inductors I made up .

https://www.diyaudioandvideo.com/Calculator/AirCoreInductorDesigner/

 

[Tubetec]

And a neat 'Bridged T' calc from Xarules,

https://www.custommmic.com/calculators/attenuator/

 

[dogears]

This site has tons of good stuff, but I really like the biasing calculators.

http://www.guitarscience.net/theory.htm

 

[Tubetec]

Cheers Dog,

theres millions of them out there so peoples personal recomendations help a lot  sorting the good from the bad.

Duncan amps Psu-d2 is a fav of mine ,again slightly different as its a download and install job  not a webpage ,
Tonestack calculator is another useful enough one from the same site , allows you  to look at the response of many tone control circuits used in guitar amps .

 

[dkselw]

Saturn PCB Design Toolkit
http://saturnpcb.com/pcb_toolkit/

 

[living sounds]

Opamp noise calculator:

http://www.dicks-website.eu/noisecalculator/index.html

If not availible, see the archive:

https://web.archive.org/web/20190418100300/http://dicks-website.eu/noisecalculator/index.html

 

[gyraf]

Al/Turns/Inductance Calculator

Calculate your own inductors, measure A(L)-values

https://powermagnetics.co.uk/calculator/