wall wart? | Moe’s Tavern 2.0: A Guitar Forum

cedarchoper58
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wall wart? Jun 18, 2022 17:41:30 GMT -5

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Post by cedarchoper58 on Jun 18, 2022 17:41:30 GMT -5

I wanted to lower the voltage to 8v because my rig sounds best with it at 7-8vdc. I found this wall wart that some one here recomended to go to 7.5v but the polarity is backwards. what will happen if i use it on a TS9 tube screamer and a wha and a tuner. Link bellow thks

www.amazon.com/SoulBay-Universal-Switching-Selectable-Electronics/dp/B01N7RS0NG/ref=asc_df_B01N7RS0NG/?tag=hyprod-20&linkCode=df0&hvadid=216534554317&hvpos=&hvnetw=g&hvrand=138395703131392002&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9006322&hvtargid=pla-351409027577&psc=1

009
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wall wart? Jun 18, 2022 18:09:04 GMT -5 Peegoo 🏁 likes this

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Post by 009 on Jun 18, 2022 18:09:04 GMT -5

Scroll way down to the Q&A section and you'll see this addressed, 3rd question. You can get a polarity reversing cable. Here's the link one responder provided:

www.amazon.com/SoulBay-Reverse-Polarity-Converter-Guitar/dp/B075R64SCQ/ref=pd_bxgy_3/143-2601585-0797348?_encoding=UTF8&pd_rd_i=B075R64SCQ&pd_rd_r=718e2963-a7ca-42e5-8626-aef1300151f4&pd_rd_w=j5Xvh&pd_rd_wg=kSHLa&pf_rd_p=f325d01c-4658-4593-be83-3e12ca663f0e&pf_rd_r=SA92HC95DW0CG46A3KQF&psc=1&refRID=SA92HC95DW0CG46A3KQF

Peegoo 🏁
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wall wart? Jun 18, 2022 19:00:54 GMT -5

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Post by Peegoo 🏁 on Jun 18, 2022 19:00:54 GMT -5

Some pedals have reverse-polarity protection in the form of a diode at the power jack. But some pedals don't have this, and you can completely toast a pedal by getting it backwards. Look closely at the label on the pedal wo see how the power input jack is configured. It will be either "center positive" or "center negative." Most pedals these days are center negative.

Make sure the diagram on the power supply matches the diagram on the pedal--or the magic smoke may escape from your pedal.

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cedarchoper58
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wall wart? Jun 18, 2022 22:16:31 GMT -5

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Post by cedarchoper58 on Jun 18, 2022 22:16:31 GMT -5

Jun 18, 2022 19:00:54 GMT -5 Peegoo 🏁 said:

Some pedals have reverse-polarity protection in the form of a diode at the power jack. But some pedals don't have this, and you can completely toast a pedal by getting it backwards. Look closely at the label on the pedal wo see how the power input jack is configured. It will be either "center positive" or "center negative." Most pedals these days are center negative.

Make sure the diagram on the power supply matches the diagram on the pedal--or the magic smoke may escape from your pedal.

thks my pedals are vintage and dont want to smoke them

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wall wart? Jun 20, 2022 4:30:38 GMT -5

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Post by reverendrob on Jun 20, 2022 4:30:38 GMT -5

You can also have someone make you a 'voltage starve' box that cuts output on a dial resistor - you may find that a better result that "x amount" on a device that doesn't have any adjustment when under load.

It's why my "signature" fuzz has its own starve control!

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