AMZ FX ANALOG ALCHEMY GEOFX MEF ROG MEF DIY WIKI

Krankenstien FET version from GT labs

Started by Brymus, January 21, 2011, 04:46:39 AM

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audioguy

#60
May 17, 2011, 06:35:36 AM
Wish I could do my own pcb... I just dont have the layout chops for a job this big.

euronymous0001

#61
May 17, 2011, 12:47:29 PM
Quote from: audioguy on May 17, 2011, 06:35:36 AM
Wish I could do my own pcb... I just dont have the layout chops for a job this big.

have you tried doing a layout for this one? ;D

deadastronaut

#62
May 17, 2011, 12:53:20 PM
nope!... :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//

euronymous0001

#63
May 17, 2011, 01:04:06 PM Last Edit: May 17, 2011, 01:06:56 PM by euronymous0001
Quote from: deadastronaut on May 17, 2011, 12:53:20 PM
nope!... :D

in that case: ;)





and for those who opt not to use ground fill:





just resize the pnp to proper size

btw, this are from the stock schem, i've added a pad for the lug 3 of the gain pot incase you opt to have it on ground rather than on Vb

now etch some boards and do some solderin'   :icon_twisted:

deadastronaut

#64
May 17, 2011, 01:05:43 PM
@euro: DUDE!.... :icon_eek: nice one!...youve made a lot of people happy today...have a beer!.. :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//

euronymous0001

#65
May 17, 2011, 01:10:48 PM
i've tried this once and failed (using the original schem). im on my second attempt using board version #16 IIRC ;D

just that i can't seem to have the time to start solderin' those damn components  :icon_mrgreen:

so etch some boards and report back so we could verify this one :icon_twisted:

btw, thanks for the beer!  ;D

euronymous0001

#66
May 17, 2011, 01:20:21 PM
this thread would be inactive for sometime since all those who are following this would be busy solderin'  ;D

audioguy

#67
May 17, 2011, 01:25:20 PM
awesome!!!! I'll take a shot at it this week!

Maik

#68
May 17, 2011, 02:12:58 PM
2 beers from me. Thanks a lot dude  :icon_mrgreen: :icon_mrgreen: :icon_mrgreen: :icon_mrgreen:

euronymous0001

#69
May 17, 2011, 02:27:45 PM
i forgot, i used BS170 for the MOSFETS on the layout, so they need to be oriented as BS170 and not as 2N7000 :icon_mrgreen:
crosscheck with the datasheet of your BS170 and the schem to avoid misorientation of your MOSFETS ;)

Maik

#70
May 17, 2011, 02:30:56 PM Last Edit: May 17, 2011, 03:33:58 PM by Maik
witch layout did you use? The first one or the "final"?
sorry dude, sometimes I´m just too excited...stock version... ;D

euronymous0001

#71
May 17, 2011, 07:28:01 PM
Quote from: Maik on May 17, 2011, 02:30:56 PM
witch layout did you use? The first one or the "final"?
sorry dude, sometimes I´m just too excited...stock version... ;D

the two layouts above are the same except one has ground pour. i think you meant to ask if the schem i used was the stock or the brymus version.

the layouts are based from the stock version. these are the deviations from the stock scheme:

  • 1) added reverse protection diode [D3]
  • 2) Q2, Q3 and Q4 are BS170 and not 2N7000 on my layout (almost always that BS170 have the opposite pin configuration from that of 2N700, DGS vs SGD. but there are some BS170 that have the same pin so check the datasheet of the MOSFET you have, the drains of Q2-Q4 are connected to R9, R15 and R20)
  • 3) mislabeled the SWEEP POT on the tonestack as PRES
  • 4) added a GROUND PAD beside the lug 1 of the GAIN POT (i mentioned it as lug 3 earlier :icon_redface:) if you want to have it on ground as opposed to Vb (see stock schem and the brymus version)

askwho69

#72
May 18, 2011, 10:55:10 AM
WOW!!! if your done you will have a bottle of Tanduay Rhum! :D with this chick!
:icon_lol:



"To live is to die"

deadastronaut

#73
May 18, 2011, 11:01:01 AM
Oi!...thats my wife!.. :icon_eek:....


i wish..;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//

Maik

#74
May 18, 2011, 03:44:26 PM
mom??....mom?.....MOM! what are you doing here? ;D

askwho69

#75
May 19, 2011, 12:30:55 AM
hahahahaha  :icon_mrgreen:
"To live is to die"

deadastronaut

#78
May 23, 2011, 05:58:50 AM
 ??? ???
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//

audioguy

#79
May 23, 2011, 07:06:45 AM
You gotta give us some time to build it! hahaha
My printer ran out of toner- so I couldn't etch this weekend... sad for me. 
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