Please help me making a germanium tone bender mk1.5

[funky.monkey]

Hi. Recently I got my self this good looking pnp germanium transistor. Actually this isn't the first time I make this fuzz topology. But I have problems with this transistors ( GC121 & MP41 ).
This are the parameters of hfe & leakage:
GC121 : hfe=130 leakage=535ua
MP41 : hfe=150 leakage=160ua
I made the circuit on the bread board but, it isn't sound like a fuzz pedal. Actually it's sound very smoother than a fuzz pedal.

 

[owlexifry]

I made the circuit on the bread board but, it isn't sound like a fuzz pedal

- show us the breadboard build
- post your voltage readings (particularly Q1c & Q2c)

 

[funky.monkey]

- show us the breadboard build
- post your voltage readings (particularly Q1c & Q2c)

Actually I don't have access to the workshop at the moment. I used multiturns instead of collector resistors for both transistors.

This are the collectors voltages:
Q1 = 0.7v
Q2 = 4.5v

Am I have to measure voltages on the other points?

 

[owlexifry]

This are the collectors voltages:
Q1 = 0.7v
Q2 = 4.5v

looks ideal.

are you following the sola sound schematic at the top or the vox schematic below it?

 

[Big Monk]

looks ideal.

are you following the sola sound schematic at the top or the vox schematic below it?

Good point. These are very distinct circuits in the way they are set stock.

 

[funky.monkey]

looks ideal.

are you following the sola sound schematic at the top or the vox schematic below it?

I tried both circuits, but they didn't work as they should

 

[Big Monk]

I tried both circuits, but they didn't work as they should

What are you playing it through?

This is common thing people run into: If you are hitting an overdriven amp with a decent amount of mids with a "fuzz" pedal, it smoothes things out.

 

[funky.monkey]

What are you playing it through?

This is common thing people run into: If you are hitting an overdriven amp with a decent amount of mids with a "fuzz" pedal, it smoothes things out.

I play it through a clean solid state amp.

 

[PedalBuilder]

Actually I don't have access to the workshop at the moment. I used multiturns instead of collector resistors for both transistors.

This are the collectors voltages:
Q1 = 0.7v
Q2 = 4.5v

Am I have to measure voltages on the other points?

Your Q2 collector voltage is too low. The Tone Bender Mk. 1.5 isn’t biased like a fuzz face, even though it follows the same topography. Assuming that VCC=9v, you want Q2 to have a collector voltage somewhere in the 6.5-8v range; increase that by a fraction of a volt if VCC is higher. Adjust Q1’s collector resistor or roll transistors for Q1. More leakage in Q1 will raise the collector voltage of Q2.

 

[funky.monkey]

I'll adjust the voltages.
Do you mean that the Q1 leakage is more important than the Q2?