Tube Screamer Schematic Analysis
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- čas přidán 22. 06. 2023
- A look at the circuitry under the hood of the legendary Ibanez Tube Screamer Overdrive Pedal for guitar gear nerds. Schematic analysis. Aimed to give understanding in broad terms, as well as providing some of the relevant equations.
Great video, thanks for posting. At
Dude! I need this lol, I’m brand new to building pedals but I’m seriously fascinated with everything. PLEASE do more of these videos for the other popular circuits. You’re the only one I’ve found that actually explains what all the components are actually doing and it’s super helpful. Thanks!
Great, great explanation! funny and to the point. Exactly what I needed. Thaaaaannnnks!
C3 actually blocks DC gain. With the input sitting at 4.5 vdc, the gain of the op amp would drive the output constantly to the positive rail
Excellent
R4 4.7k and P3 100k are both connected to 4.5V V bias instead of Ground. You can open up an 808 or 9 and see. I've studied TS/ DS-1/ Klon schematics from ElectroSmash so far, lots of time spent, and I found that all of them had a little bit of differences. An object or a reliable replicant is needed when you really want to understand the whole thing through.
I'd actually really enjoy an explanation of the JFET bypass circuit! Is it a common bypass utilized often in pedals?
Dumb question about the JFET Bypass switch in the very beginning: The first schematic is an example of a pedal WITHOUT true bypass? And true bypass is a simpler way to do it than the JFET Bypass switch?
can this bypass be replaced by a dpdt switch ?
There's no bypass path for when the pedal is not engaged.
thought that was a filter cap on the power there.. (C17)
Surely, the battery negative will be disconnected from all parts of the circuit as soon as the input has anything plugged in! Likewise, the Power Supply negative has no connection to any part of the circuit at any time. Is this intentional?
What's the resistor labeled RA?
Mouse noise is driving me crazy. How about a Bluetooth pen?
Diodes are a bit too rounded!
Normalised =/= Normalled. Thanks for the walkthrough!
Dude! I need this lol, I’m brand new to building pedals but I’m seriously fascinated with everything. PLEASE do more of these videos for the other popular circuits. You’re the only one I’ve found that actually explains what all the components are actually doing and it’s super helpful. Thanks!