AMZ FX ANALOG ALCHEMY GEOFX MEF ROG DIY WIKI

tonestack calculator layouts?....

Started by deadastronaut, June 27, 2011, 07:22:20 PM

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waltk

#20
July 21, 2011, 11:32:44 PM
So I actually built this.  It has 6 tonestacks from Duncan's TSC.  They are connected in series and have 6 DPDT switches for true bypass on each so you can independently turn them on and off (although it doesn't make sense to have more than one on at a time).



At the bottom there are dual boosters (also wired in series before and after the tonestacks), so you can use it as a stand-alone tester.



Here's the back view.  No lead dressing to speak of.  But easy access to the guts.



The board has everything socketed, so any resistor or cap can be swapped.  I use three-pin connectors for the pots, so they can easily be changed as well.

John Lyons

#21
July 21, 2011, 11:46:35 PM
Go man go!   :icon_biggrin:
Basic Audio Pedals
www.basicaudio.net/

frequencycentral

#22
July 22, 2011, 02:12:48 AM
Walt got da tone.  :o
http://www.frequencycentral.co.uk/

Questo è il fiore del partigiano morto per la libertà!

deadastronaut

#23
July 22, 2011, 04:36:33 AM Last Edit: July 22, 2011, 04:38:55 AM by deadastronaut
waheyyy nice one walt.. :icon_cool: :icon_cool: :icon_cool:

great stuff.....so which is your favourite?....

what happened to marshall?

i k now the bmp is terrible... :icon_mrgreen:
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

waltk

#24
July 22, 2011, 09:17:36 AM
Quotegreat stuff.....so which is your favourite?....

what happened to marshall?

I've been trying out all the tonestacks (it's nice to A-B them with this), but haven't picked a favorite.  Interesting thing about the BMP, it makes a huge difference in the sound if the pre-booster is turned on or off.  I presume that's because it has a low input impedance, and the pre-booster is acting as a buffer to eliminate the tone-sucking.

The Marshall tonestack uses some unusual pots that I didn't have in stock.  I guess I'll have to order some to complete it.

Nh92784

#25
September 05, 2011, 05:56:00 PM
Hey Walt, can you upload the PCB images for the various tonestacks? Thanks!


-Nick

waltk

#26
September 06, 2011, 02:32:02 PM
QuoteHey Walt, can you upload the PCB images for the various tonestacks?

Yep, but I got the pins reversed on a couple of the pots in the existing layout(s).  I like to have pin 1 using a square pad (for consistency).  Give me a couple days to make the corrections, and I'll post them here.

Nh92784

#27
September 06, 2011, 03:08:47 PM
Awesome, thanks a lot. I made a layout of the BMP with the tone stack removed so i could try various tone circuits or EQs and the different circuit snipets you posted seem like just the ticket.

-Nick
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