Summer School Electronics Extra Credit Boost

Summer School Electronics Extra Credit Boost

Marsoni

M251S

$2487.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Summer School Electronics Extra Credit BoostThe Extra Credit is two boost pedals in one. With the toggle switch to the left, the Extra Credit is a one knob op amp boost. With the toggle to the right, the Extra Credit becomes a transistor based boost. This engages the Brightness control for extra top end sparkle and grit to be added to the signal. The Extra Credit works great at the end of your chain for solos, in front of your favorite overdrive for added grit, or as an always on preamp!

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Fast: 2-3 business days
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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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It took a few tries to get it positioned exactly as i wanted it but once that was done it hasn't moved. I have a Samsung s25fe phone with a case and it fits just fine. Seems secure. It does shake slightly while driving on bumpy roads but it doesn't move positions and I don't feel like my phone is going to fall. So far it's been great.

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Reviewed in the United States on May 13, 2026

Verified Purchase

Java

Whiting, US

★★★★★ 5

Quality cell phone mount.

The best cell phone mount I ever used. Quality is obvious after you easily install. This hasn’t moved since I placed it in my car. I like that it doesn’t block the air vent too. (You can move any angle you like). Won’t disappoint! Good buy!

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Reviewed in the United States on May 1, 2026

Verified Purchase

Norm E

Louisville, US

★★★★★ 5

Good working Cell Phone mount

Easy to install in vent, works very well.

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Reviewed in the United States on May 11, 2026

Verified Purchase

Paul