Tone Stack Question

[Baktown]

All,

I'm trying to learn how to add tone stacks to simple builds, and it was pointed out to me that I need to know what the impedance of the circuit is before attempting to add a tone stack.

Can anyone point me in the direction of a tech page that could explain to me how to calculate impedance?  I would like to be able to use Duncan's Tone Stack Calculator to match a tone stack to a few different simple builds.

Thanks in advance!

Axl Bundy

[Papa_lazerous]

Just scanned through your other thread, the one that led you here.  Your circuit works but the tone stack is sucking all the volume........ Well add a recovery stage after it to boost the volume back up.  Think Big muff and you will be there

Just my 2 pennies worth

[Baktown]

That's exactly what I was thinking, but for my own info, I want to learn about impedance and other tech issues so I can experiment a little.

Thanks for the help!

Axl

[Baktown]

This is what I came up with earlier, the Marsha Valve with a Big Muff tone stack.

Does anyone see any errors or have any suggestions for changes?

Thanks,

Axl

[Papa_lazerous]

Ahh I see, well Impeance you wont be going far wrong if you pay a visit to Geofex http://www.geofex.com/Article_Folders/impednc.htm RG has written plenty there to get you going.  May be more there didnt look too hard hell look what google kicked up http://www.google.co.uk/search?hl=en&safe=off&q=impedance&meta=

Do yourself a big favour and post a schem or link to schems when posting layouts its hard to check even with the best will in the world if people cant see what its meant to be doing

[Baktown]

Gotcha!

THanks for the help.

Here's the schematics of the Marsha Valve and the Big Muff tonestack....


Axl