I've been trying to figure out if this pedal is working correctly, but it doesn't sound like the demos I've watched.
The boost is fine, but both fuzz modes are much lower in volume and really, really splatty....broken up.
Using the schematic I found here, there's a nice clean sine wave at the base of Q12, the collector output is flat like with humps at frequency and the emitter output is a flat line with negative points.
Out of the diff pair of Q14 and Q13 is a flat line with the humps doubled in frequency.
Out of the two separate filters of IC1 a & b are nasty little spikes and mutilated triangle waves respectively.
IC1 amplifies the nasty waves.
The transistors mentioned all test good, and their voltages are what you'd expect from a similar circuit.
Boss FZ-2 too splatty? [SOLVED]
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drewl
- Breadboard Brother
Okay, looks like Q12 was bad, breaking down under load.
Replaced it and signals look a lot better with higher output.
have to wait until I get home to try it, but it looks like that was it.
Replaced it and signals look a lot better with higher output.
have to wait until I get home to try it, but it looks like that was it.
Information
Awesome! This is one of those pedals I wish hadn't "disappeared" from my possession. One day I hope to clone it. I loved that thing. Congrats on fixing it!drewl wrote:Okay, looks like Q12 was bad, breaking down under load.
Replaced it and signals look a lot better with higher output.
have to wait until I get home to try it, but it looks like that was it.
Loe Sounds