---
product_id: 504445701
title: "KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output"
brand: "knacro"
price: "$U3612"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/504445701-knacro-lm317-lm337-adjustable-voltage-regulator-power-supply-board-5
store_origin: UY
region: Uruguay
---

# ±1.25V to ±37V adjustable output Plug-and-play finished power supply board Precision voltage control via resistance tuning KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output

**Brand:** knacro
**Price:** $U3612
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects with precision and ease—because your gear deserves the best!

## Quick Answers

- **What is this?** KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output by knacro
- **How much does it cost?** $U3612 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/504445701-knacro-lm317-lm337-adjustable-voltage-regulator-power-supply-board-5)

## Best For

- knacro enthusiasts

## Why This Product

- Trusted knacro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Control:** Fine-tune output voltage with simple resistance adjustments for exact power delivery
- • **Stable & Reliable:** Engineered for consistent performance in sensitive audio and pre-amp applications
- • **Ready-to-Use Design:** Comes as a fully assembled board—no soldering required, just plug and power
- • **Versatile Voltage Range:** Seamlessly switch from ±1.25V up to ±37V DC for any project need
- • **Professional Grade Power:** Ideal for headphone amps, pre-amps, and custom electronics demanding clean voltage

## Overview

The KNACRO LM317 LM337 Adjustable Voltage Regulator Board offers a wide DC output range from ±1.25V to ±37V, enabling precise voltage control through resistance adjustments. This fully assembled, stable power supply is perfect for professional audio equipment like pre-amps and headphone amplifiers, delivering reliable and clean power with plug-and-play convenience.

## Description

KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output

## Features

- Stable performance
- Change the resistance value can change the output voltage range, precision control
- For the use of pre-amp,headphone amp etc.
- Output :DC±1.25-37V adjustable
- Finished board can be used directly.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0741T2W3G |
| Best Sellers Rank | #1,162,220 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5,471 in Power Converters |
| Customer Reviews | 4.0 4.0 out of 5 stars (13) |
| Date First Available | July 18, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.7 ounces |
| Item model number | 4350282330 |
| Manufacturer | KNACRO |
| Product Dimensions | 2.44 x 3.35 x 1.18 inches |

## Product Details

- **Brand:** KNACRO
- **Colour:** Multicolor
- **Item dimensions L x W x H:** 6.2 x 8.5 x 3 centimetres
- **Output voltage:** 37 Volts
- **UPC:** 603432621074

## Images

![KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output - Image 1](https://m.media-amazon.com/images/I/81UgdxQNfVL.jpg)
![KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output - Image 2](https://m.media-amazon.com/images/I/81C2LSGb25L.jpg)
![KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output - Image 3](https://m.media-amazon.com/images/I/81LEROWoApL.jpg)
![KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output - Image 4](https://m.media-amazon.com/images/I/71BlYDgNJlL.jpg)
![KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output - Image 5](https://m.media-amazon.com/images/I/81PP0+UXk6L.jpg)

## Frequently Bought Together

- KNACRO LM317 LM337 Adjustable Voltage Regulator Power Supply Board ±5 ±9V ±12V ±15 ±24 ±18V ±24V ±36V ±1.25V to ±37V DC Output
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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-20*