Very cool, thanks! I'd LOVE to see the Impossible Colors pop up here, although I'm not sure if it's been traced... Bosstone-based I think. Fingers crossed!
Not much too say, its a hyperfuzz with a couple of nice tricks. Sounds heavy, thick and brutal, as expected. I tried some small adaptations (22k instead of 27k in rectifier), A5k for mid scoop, Si diodes instead of led clippers, and used mpsa42 (matched Q2 and Q3).
While I have my share of super/hyper fuzzes, I think the clean blend in this one will justify boxing it. Even on guitar, it is really useful, and I'm having lots of fun blending other dirt with it :)
Mine works, all the controls work as should but still feels gated and and doesn't get real filthy like it should kinda stumped , tried different transistors, swapped to sil diodes still the same thing
Hi there, really sorry you cant get it working - troubleshooting an "almost working project" can be really frustrating (i think ive tried to build the quantum mystic 3 separate times without sucess...). Regarding this layout, i can confirm that it works and my unit does not do any gating and gets pretty filthy. So, if you havent yet, i suggest you carefully check solder bridges and try to audio probe the signal path (even though it might get tricky around the rectifier section Q2 and Q3) to try to spot the problematic area! Good luck!
Awesome thanks for the update I'm gonna look at stuff tonight , I can hear the differences when I swap transistors but not much I'm gonna order some in the 150-200 range and hopefully that helps. Could you possibly provide some voltages for me to check or compare to?
Yes, I will try to measure it this evening or tomorrow - pedal is boxed, so I will need to be careful :)
From my experience transistor gain definitely impacts the sound/sustain in super/hyperfuzzes, but I'm not sure it would lead to the dramatic behavior you describe, so I would look somewhere else.
Thanks so much. Tracked down the problem finally, my jumper connecting the emitters on Q2/Q3 was off by a hole..sounds a thousand times better thanks for the help
Happy new year!! Thanks!!!
ReplyDeleteVery cool, thanks! I'd LOVE to see the Impossible Colors pop up here, although I'm not sure if it's been traced... Bosstone-based I think. Fingers crossed!
ReplyDeleteHi, you can also tag this one, layout is perfect!
ReplyDeleteNot much too say, its a hyperfuzz with a couple of nice tricks. Sounds heavy, thick and brutal, as expected.
I tried some small adaptations (22k instead of 27k in rectifier), A5k for mid scoop, Si diodes instead of led clippers, and used mpsa42 (matched Q2 and Q3).
While I have my share of super/hyper fuzzes, I think the clean blend in this one will justify boxing it. Even on guitar, it is really useful, and I'm having lots of fun blending other dirt with it :)
Thanks!
Mine works, all the controls work as should but still feels gated and and doesn't get real filthy like it should kinda stumped , tried different transistors, swapped to sil diodes still the same thing
ReplyDeleteMan i still cannot get this thing working as should I would love some help before I completely take this all apart
ReplyDeleteHi there, really sorry you cant get it working - troubleshooting an "almost working project" can be really frustrating (i think ive tried to build the quantum mystic 3 separate times without sucess...).
DeleteRegarding this layout, i can confirm that it works and my unit does not do any gating and gets pretty filthy. So, if you havent yet, i suggest you carefully check solder bridges and try to audio probe the signal path (even though it might get tricky around the rectifier section Q2 and Q3) to try to spot the problematic area!
Good luck!
Awesome thanks for the update I'm gonna look at stuff tonight , I can hear the differences when I swap transistors but not much I'm gonna order some in the 150-200 range and hopefully that helps. Could you possibly provide some voltages for me to check or compare to?
DeleteYes, I will try to measure it this evening or tomorrow - pedal is boxed, so I will need to be careful :)
DeleteFrom my experience transistor gain definitely impacts the sound/sustain in super/hyperfuzzes, but I'm not sure it would lead to the dramatic behavior you describe, so I would look somewhere else.
Here you go:
DeletePower supply measures +9.97V
Q1 Q2 and Q3 Q4
C = 8.58V C = 3.43V C = 9.69V
B = 2.73V B = 1.67V B = 0.51V
E = 2.31V E = 1.11V E = 3.53V
IC1 IC2 IC3
1 = 4.83V 1 = 4.83V 1 = 4.83V
2 = 4.83V 2 = 4.83V 2 = 4.83V
3 = 2.41V 3 = 4.80V 3 = 4.34V
4 = 0.00V 4 = 0.00V 4 = 0.00V
5 = 2.31V 5 = 4.83V 5 = 0.21V
6 = 4.81V 6 = 4.83V 6 = 9.10V
7 = 4.83V 7 = 4.83V 7 = 9.10V
8 = 9.69V 8 = 9.69V 8 = 9.69V
well, I tried to organize into columns :) should be readable - just note that Q2 and Q3 measure the same
DeleteThanks so much. Tracked down the problem finally, my jumper connecting the emitters on Q2/Q3 was off by a hole..sounds a thousand times better thanks for the help
DeleteVery nice that you solved it and got it working! Cheers!
Delete