Chuck D. Bones
Circuit Wizard
You could sub Si for Q2 on the BB until you get a high-gain Ge tranny.
CONTEST Buddy's Contest
- Thread starter BuddytheReow
- Start date
steviejr92
Authorized Vendor
Well that just set this project in motion! Going for it!
steviejr92
Authorized Vendor
Ok so I updated the Schematic it had 1 error in there I was missing a 1k resistor between Q2-C and the 5k trimmer. This is only the fuzz face side right now. I'm happy to say that I found a GE tranny that fits Q2 nicely. The thing roars! I love it first fuzz face circuit ever and I'm building it! Right now I have the trimmer biased in such a way so that the Tone control covers between 3 and 7.4 V on the collector of Q2. For Q1 I have a 2N229 that has an hFE of 61 and for Q2 I have a 2N1308 with an hFE of 112. From here I'm going to be breadboarding the Range finder side!
Disregard the circuit at the bottom thats a different project
Disregard the circuit at the bottom thats a different project
Chuck D. Bones
Circuit Wizard
Is it loud enough like that?
Why do you think you need a resistor between Q2-C and the 5K trimmer?
Try switching the transistors and see which one sounds better.
Why do you think you need a resistor between Q2-C and the 5K trimmer?
Try switching the transistors and see which one sounds better.
steviejr92
Authorized Vendor
I was following the Sunface Schem and realized he had it in there. As i was fixing a few connections i noticed i left it out so i added it back in. Im going to leave it out and see if it gets even louder!
Chuck D. Bones
Circuit Wizard
If you want even more volume, try making the 470Ω bigger (like 1K).
Copying someone else's design without knowing why they did it or even if was a good idea can be a recipe for disaster. I'm not dissing AnalogMan, just pointing out that circuit designs can have "features" that might bite you in the ass. Vintage FF's have a hard time producing unity volume and it comes down to the ratio of the resistors in Q2's collector circuit.
Copying someone else's design without knowing why they did it or even if was a good idea can be a recipe for disaster. I'm not dissing AnalogMan, just pointing out that circuit designs can have "features" that might bite you in the ass. Vintage FF's have a hard time producing unity volume and it comes down to the ratio of the resistors in Q2's collector circuit.
steviejr92
Authorized Vendor
Im going to keep that in mind! I need to start asking more questions on what these components are doing so i have a better understanding on how to go about building these circuits. Im going to make remove the 1k resistor and add it in place of the 470R. I will update asap!
steviejr92
Authorized Vendor
Wow what a difference! Im going to update the schem now. Thanks for letting me know! So whats the point of the 1K in the the sunface? Why restrict that much gain and volume?
Chuck D. Bones
Circuit Wizard
You'll have to ask AnalogMan. I'm inspired to write an article about how the FuzzFace works in The Boneyard.
steviejr92
Authorized Vendor
Thats going to be a great article (if you choose to do so). They're interesting circuits to say the least. I would love to read your input on what makes Fuzz faces tick.
Chuck D. Bones
Circuit Wizard
Give me a few days, I have a leaky roof to fix and another pedal design in the works. You can guess which one I'd rather be doing.
steviejr92
Authorized Vendor
No problemo. I dont rush cause im not from Russia....
steviejr92
Authorized Vendor
Ok so I have the rangefinder breadboarded and it kicks butt!
I used a 2N229 that had a hFE of 59. Biased it to 4.84V.
I connected them together via output from fuzz face to the input of the Rangemaster.
I can tell you already this is going to be one amazing pedal. Ive been having more fun playing with it rather than building it
.
Updated Schematic:
I used a 2N229 that had a hFE of 59. Biased it to 4.84V.
I connected them together via output from fuzz face to the input of the Rangemaster.
I can tell you already this is going to be one amazing pedal. Ive been having more fun playing with it rather than building it
.
Updated Schematic:
Last edited:
Chuck D. Bones
Circuit Wizard
R? isn't really 1M, is it?
steviejr92
Authorized Vendor
For the Rangefinder yes I just annotated the schematic.
R1 and R7 are both 1M.
R1 and R7 are both 1M.
Chuck D. Bones
Circuit Wizard
Extraordinary.
Why is R7 Sofa King large? And don't tell it's because AnalogMan did it that way.
Why is R7 Sofa King large? And don't tell it's because AnalogMan did it that way.
steviejr92
Authorized Vendor
Isn’t this @Robert schemExtraordinary.
Why is R7 Sofa King large? And don't tell it's because AnalogMan did it that way.
and yes I followed it to the tee
Chuck D. Bones
Circuit Wizard
When you see it, you'll shit bricks.
steviejr92
Authorized Vendor
I’ll be honest I thought it was there to reduce any popping that might happen when switching between all those caps.
Chuck D. Bones
Circuit Wizard
It would be if you connected R7 correctly. You might have built it right, but you have not drawn it right.