Earthquaker Life Pedal V3 Teardown! See what's inside!

Welcome back to the teardown series, where I take apart new and interesting pedals and show you what's going on inside.
This week on the bench is the newest version of the Life Pedal from Earthquaker.
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#lifepedalv3 #earthquaker #sunn

[@erikvincent5846]

Very good teardown! The P1 header for programming the PIC18F was kind of a stick out for me. I liked their silk screen for the "Emergency IC" for making it through-hole or SMD. I am curious about the green ringer diode choice, though. I get the whole going away from Germanium diodes bit, but they could have at least went down the schottky diode route to maintain the forward voltage range.
Keep up the good work!

[@graybenchelec]

Good point! You would think they would want to keep the Vf similar but I guess it's one less part to have to buy. Already using the same diodes in the clipping circuit.

[@thomasseaton8320]

Love your videos. I personally would like to know what’s inside of the Fairfield Circuitry The Accountant. I’ve been on a compressor kick lately. I’d love a DIY version of this circuit. I love everything Fairfield.

[@graybenchelec]

Thank you, noted!

[@martinreid1740]

I really like your channel and especially enjoyed the series on the centura and KTR diodes. Keep up the good work and you deserve so many more likes and subscribers.

[@graybenchelec]

Thank you!

[@robertyboberty]

Love it. Thanks for posting

[@graybenchelec]

Thank you!

[@Mrcrazyforlego]

You do a great teardown

[@brianwendt9818]

I've learned so much from your videos!! I would love to see a series of pedal mods. Jhs,keeley,analogman etc

[@graybenchelec]

Thanks, I'll keep that in mind!

[@CharlesWillisBonsai]

I'd expect the octave circuit to at least be about twice as loud with the 1n4148s. It's got me curious though. I may have to breadboard a green ringer with silicon diodes.

[@ericdavey6702]

Oooo! Yes!

[@firstclassfish01]

Thanks for the teardown. One note, it’s not an LM308 in this version. Wasn’t the spec sheet you showed even for the CP07? Thanks.

[@graybenchelec]

Thank you!

[@2010georgian1]

I have the V1... it's so different inside and non of these posterior version sound better...

[@xdoctorblindx]

Is this going to be a limited run? Seems like a great utility pedal that would have applications in many genres.

[@marksescon]

Part of their main lineup now.

[@waynegram8907]

Are you saying that the new silicon diodes are DC biased still for germanium diodes but they are using silicon diodes but using a DC bias voltage for germanium diodes?

[@graybenchelec]

The green ringer applies a DC bias to both diodes as part of the rectification process. This keeps the diodes from distorting the signal (ideally) and biases the following transistor.
I didn't look closely at the resistor values, but I don't see why you'd need a different DC bias for silicon germanium, it's usually a 1/2 voltage supply regardless.

[@waynegram8907]

@@graybenchelec I think the DC bias for the germanium diodes is a lower voltage compared to the DC bias for the silicon diodes is a higher voltage because they are silicon diodes and the operating bias point is different compared to germanium diodes operating bias point. They are using the diodes so they aren't distortion the signal 100% so the DC bias point needs to be adjusted correctly to find that sweet spot.

[@graybenchelec]

@@waynegram8907 In this case it shouldn't matter. You're correct that silicon and germanium have different forward voltages, but the DC bias voltage is approx. 4.5V. That will put both silicon and germanium diodes into conduction.

[@voxpathfinder15r]

Y’all can say SMD is perfectly fine, but thanks to these videos, I will never buy an earthquaker pedal

[@LabSkaterPussies]

Does anyone know what the part is that's the spring grounding contact? I can't find anything like it online except for battery contacts