Killing Floor Effects Axis Fuzz Teardown! See what’s inside! 

No problem!

It’s not a cardboard 😅 it’s vulcanized Fiberboard 😊 The bias on Q1 was definitely to low, before we send the pedal we set the bias correct q1 on 0,7 Q2 on first Position is normaly on 4.6v if you turn it to the higher resistor position it goes down to around 3.2 but you can set it also in fist position on 5.6v the it goes down to 4.5v on high resistor position. There comes a bias description with the pedal to get the right sound 😊

@@killingfloor8013 Thanks for the correction. I'll reset the bias before passing it on to the next person.

@@killingfloor8013 Well that makes a lot more sense :) Thanks for chiming in and good job on the pedal!

Just for reference I think you’re talking about the tone switch right? Either way yes I wouldn’t call that the negative feedback resistor, if I did that was a misspeak. The 470 and 8.2K resistor values are both responsible for the bias on Q2 as I hopefully demonstrated. I don’t think “flaw” is a fair way to characterize the fact that the bias on Q2 changes with the tone knob. That is in fact an intended consequence. Many builders make the bias adjustable externally (Sundance for example) so you can alter the bias from the “correct” value. Hope that makes sense.

@@graybenchelec yes the 470 ohm resistor changes the bias but it's also adjusting the positive feedback of the of the of Q2 positive feedback into q1 so it's adjusting that is why it's adjusting the tone of the circuit because of the positive feedback so that's what I was trying to mention is I think there's a Pacific name for that resistor because it's adjusting the positive feedback which is adjusting the tone of the circuit but when you do that you have to constantly rebuy us the circuit again because everything's been shifted the bias points been shifted so you got to constantly readjusted every single time. Try to find out the correct term of the name of that resistor but I think it is the positive feedback resistor correct me if I'm wrong but it should say an analysis of the circuit of both faces of the analysis

@@graybenchelec yes they are calling it the tone control I don't know why they're calling it the tone control if you're saying that it changes only the bias voltage and where the for the changing the voltage divider but there's more to it than that it seems like it's either adjusting the collectors impedance because there's something doing with the tone also it has not it's not just the bias of the transistors having that gating effect or a shuttering effect or the operational point that that resistor and for the tone of which ones they're picking off they're tapping off different resistances it's changing the tone so how can it be changing the frequency response but in the frequency response profile from that resistor if it if it's not only just doing the voltage dividing of the biasing of the operation point of the Q2 so it's doing the frequency response somehow with a positive feedback or something else look into it and see about the fuzz face analysis of it talks about that on Google hit me back up thanks

It's true, but in a world or a million and one fuzz face clones, not a bad idea to have a unique feature.

Not exactly pedalboard friendly :)

Yes from Germany

Soviet cap so I think they're breaking even.

That is what I was thinking

Killing Flor copy cat Isle of Tone