AMZ FX ANALOG ALCHEMY GEOFX MEF ROG MEF DIY WIKI

no more tone stacks for me..

Started by deadastronaut, June 21, 2015, 03:41:26 PM

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deadastronaut

#20
June 23, 2015, 04:54:51 AM
well i tried a bjt buffer in front, no sound at all...this is weird..

(buffer works fine on its own )



https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

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tca

#21
June 23, 2015, 08:02:34 AM
Quote from: deadastronaut on June 23, 2015, 04:54:51 AM
well i tried a bjt buffer in front, no sound at all...this is weird..

(buffer works fine on its own )
It would be nice to see the exact circuit that you are playing with... I guess is something like this?



But the problem might be (in) the details.
"The future is here, it's just not evenly distributed yet." -- William Gibson

deadastronaut

#22
June 23, 2015, 08:16:01 AM
yep that's it...

(in) the details?... ???


i have a voltage divider and cap for vb if that's what you mean?..
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

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tca

#23
June 23, 2015, 08:28:05 AM
Don't see a problem there... it should work, as you say!

Can I ask if you did biased the opamp?

Cheers.
"The future is here, it's just not evenly distributed yet." -- William Gibson

deadastronaut

#24
June 23, 2015, 08:35:28 AM
i have 4.5v going to vb points..
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

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tca

#25
June 23, 2015, 09:14:38 AM
Bad opamp? Bad BJT?

You could take the software engineering approach: take everything out the breadboard and try again. ;)
"The future is here, it's just not evenly distributed yet." -- William Gibson

deadastronaut

#26
June 23, 2015, 09:17:07 AM
 ;D  yeah...

i'll go over it with another keen eye...
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

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PRR

#27
June 24, 2015, 03:03:58 PM
> i'm getting 8.12v on the in resistor

All points on the opamps and pots should *be* your Vb, +4.5V DC (assuming zero and +9V power).

Anything else is wrong.

The "Simple, Easy.." does not *need* a buffer for general use and happiness. However the input impedance is a little low to come right off a naked guitar with full highs, and the hiss level will be a bit high. A high-Z small-Gain amp in front may be part of the final configuration.
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deadastronaut

#28
June 25, 2015, 11:35:55 AM
cheers paul,

hmmmm...

i think i'll go for a different EQ circuit then...so much for simple eh. ;D

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//

deadastronaut

#29
June 25, 2015, 12:54:50 PM
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//

Kipper4

#30
June 25, 2015, 01:21:49 PM
Have you considered rgs parametric eq
Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

deadastronaut

#31
June 25, 2015, 01:31:35 PM
Does it work lol... ;D

i just bought a la3600, i,ll give that a go,

but yeah i,ll take a look at that too...
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//

armdnrdy

#32
June 25, 2015, 02:12:23 PM
I just designed a new fuzz circuit! It almost sounds a little different than the last fifty fuzz circuits I designed! ;)

MrBinns

#33
June 25, 2015, 03:37:03 PM
>Have you considered rgs parametric eq

prametric eqs are so cool. I built and modified a pq-4 and loved it. I haven't tried rg's though. also I'm not op.

deadastronaut

#34
June 25, 2015, 04:05:27 PM
10 :icon_eek:...thats just greedy..

@mr binns ''also i'm not op'' ?
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//

MrBinns

#35
June 25, 2015, 04:35:49 PM
Quote from: deadastronaut on June 25, 2015, 04:05:27 PM
10 :icon_eek:...thats just greedy..

@mr binns ''also i'm not op'' ?

I'm not you(the op, the original poster).

tca

#36
June 25, 2015, 04:47:51 PM Last Edit: June 25, 2015, 05:21:19 PM by tca
Quote from: deadastronaut on Today at 06:54:50 AM

Quotethink i'll go for this... http://electronics-lab.com/projects/audio/018/

You will need to recalc the capacitors values to adjust Q and frequency response  for a guitar signal. The given values are for "regular" audio.

The details and howtos is in the datasheet: http://www.datasheetcatalog.com/datasheets_pdf/L/A/3/6/LA3600.shtml

P.S.
Not much different from this: http://www.diale.org/simple-eq.html
"The future is here, it's just not evenly distributed yet." -- William Gibson

deadastronaut

#37
June 25, 2015, 05:06:53 PM
hi tiago, yep, i was looking at your caps/freq's for it.. 8)

very handy..cheers man.

(wont get chip till monday), but that's fine...i'll be recovering from a weekends camping and beer up.. :P

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//

electricco

#38
June 25, 2015, 05:09:09 PM
The best active EQ I built so far is the one into the Wampler Triple Wreck, Middle response is great but the best is the bass response on it !
....worth a try  :icon_cool:

tca

#39
June 25, 2015, 05:16:05 PM Last Edit: June 25, 2015, 05:19:28 PM by tca
Quote from: deadastronaut on Today at 11:06:53 AM
Quotehi tiago, yep, i was looking at your caps/freq's for it.. 8)

very handy..cheers man.

(wont get chip till monday), but that's fine...i'll be recovering from a weekends camping and beer up.. :P


Accidentally, or not, R0 and R1 are the same... so you *can* use the same cap values for your chip. Looking forward to ear/see your build.

Cheers.
"The future is here, it's just not evenly distributed yet." -- William Gibson
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