--- product_id: 351067443 title: "High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU" brand: "qinizx" price: "NZ$61" currency: NZD in_stock: true reviews_count: 9 category: "Qinizx" url: https://www.desertcart.nz/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v store_origin: NZ region: New Zealand --- # 150V-420V adjustable HV output Compact 90x55x32mm PCB size 3 precision potentiometers for fine tuning High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU **Brand:** qinizx **Price:** NZ$61 **Availability:** ✅ In Stock ## Summary > ⚡ Power your passion with precision — boost your build beyond limits! ## Quick Answers - **What is this?** High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU by qinizx - **How much does it cost?** NZ$61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v) ## Best For - qinizx enthusiasts ## Why This Product - Trusted qinizx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Off-Grid Ready:** Runs on 12V DC input, enabling portable, transformer-free setups for creative freedom anywhere. - • **Compact Powerhouse Design:** Small PCB footprint fits effortlessly into your custom builds without bulk or clutter. - • **Dual Voltage Control Mastery:** Seamlessly adjust both high voltage (150-420V) and filament voltage (1.25-12V) for ultimate customization. - • **High-Frequency Switching Tech:** Ensures ultra-low noise and high signal integrity—perfect for audiophile-grade tube preamps. - • **Precision Tuning at Your Fingertips:** Three dedicated potentiometers let you dial in voltage and current with surgical accuracy. ## Overview The QINIZX High Voltage DC Boost Module converts a 12V DC input into a finely adjustable high voltage output ranging from 150V to 420V, alongside a filament voltage regulator adjustable from 1.25V to 12V. Featuring three potentiometers for precise voltage and current control, this compact 90x55x32mm PCB uses high-frequency switching technology to minimize noise, making it ideal for tube preamps and nixie tube projects. While it excels in portability and customization, output voltage may drop under load, so it's best suited for low-current applications. ## Description Buy High Voltage DC-DC Boost Converter 12V to 150V-420V 170V 230V & 1.25V-12V 6.3V Filament Adjustable Step Up Power Supply 2-Way PSU Regulator Module for Tube Preamp/Nixie Tube: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Much lower output than advertised - I purchased this for a tube preamp B+ supply that I built. I was only able to get 200 volts output! That was no load! if I loaded it to even a few millamps it would put out even less high voltage an got hot. I tried different diodes in the bucking circuit but it just did not perform as expected. Electronics has been a hobby for more than 60 years.I waited beyond the return window to start my project. My mistake I should have tested it as soon as it arrived. I don't think this thing could perform as advertised, it needs higher rated parts to put out the 400 volts claimed. Meanwhile I wasted $20 Review: Works well to power small guitar amp - I like this. I am using this to power a small vacuum tube amp that I built for my guitar. I can not crank to full voltage but I can get it up to about 200 volts and it runs a little warm but is stable and does not introduce noise into the amp. This works much better than having to have a high voltage transformer etc. You can run this off 12v batteries and get off the grid and play a tube amp without heavy transformers etc. ## Features - DC12V Boost Converter High Voltage Filament Filter Power Supply Board, with a set of filament and a set of high voltage, two sets of voltage adjustable. [Note: The higher the output voltage, the lower the output current. This has nothing to do with product quality.] - Input voltage 12VDC, Output high voltage 150V-420VDC and 1.25V-12V DC filament voltage regulator is adjustable. - Due to the use of high-frequency switch, no effect on the audio, signal to noise ratio is very high. - PCB Size: 90x55x32mm/ 3.54x2.16x1.25inch(LxWxH) (Note that the size of the filter capacitor may be different, and the parameter value is the same, and we will ship it randomly.) - 20K potentiometer can adjust filament voltage (1.25V-12V DC, max 3A) ; 30K potentiometer can adjust high voltage voltage (150V-420V DC); 1K potentiometer(near the heatsink) can adjust high voltage current (30-40 mA). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0992GCCSK | | Best Sellers Rank | #500,634 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,245 in Power Converters | | Brand | QINIZX | | Brand Name | QINIZX | | Current Rating | 3 Amps | | Customer Reviews | 2.9 out of 5 stars 34 Reviews | | Item Dimensions D x W x H | 2.16"D x 3.54"W x 1.25"H | | Item Weight | 4.16 ounces | | Manufacturer | QINIZX | | Maximum Frequency | 80 KHz | | Minimum Frequency | 80 KHz | | Model | 12VBoost-HVPSU | | Mounting Type | PCB Mount | | Part Number | 12VBoost-HVPSU | | Power Source | Corded Electric | | Product Dimensions | 2.16"D x 3.54"W x 1.25"H | | Specification Met | CE | | UPC | 723258876523 | | Unit Count | 1.0 Count | | Warranty Description | 3 months | ## Product Details - **Brand:** QINIZX - **Current Rating:** 3 Amps - **Mounting Type:** PCB Mount - **Power Source:** Corded Electric - **Product Dimensions:** 2.16"D x 3.54"W x 1.25"H ## Images ![High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU - Image 1](https://m.media-amazon.com/images/I/6102IBFQNbS.jpg) ![High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU - Image 2](https://m.media-amazon.com/images/I/61UoyXdkiES.jpg) ![High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU - Image 3](https://m.media-amazon.com/images/I/61hntcXp+JS.jpg) ![High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU - Image 4](https://m.media-amazon.com/images/I/61ezJxDr-zS.jpg) ![High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU - Image 5](https://m.media-amazon.com/images/I/61O1Hy9iU+L.jpg) ## Customer Reviews ### ⭐ Much lower output than advertised *by A***E on November 12, 2022* I purchased this for a tube preamp B+ supply that I built. I was only able to get 200 volts output! That was no load! if I loaded it to even a few millamps it would put out even less high voltage an got hot. I tried different diodes in the bucking circuit but it just did not perform as expected. Electronics has been a hobby for more than 60 years.I waited beyond the return window to start my project. My mistake I should have tested it as soon as it arrived. I don't think this thing could perform as advertised, it needs higher rated parts to put out the 400 volts claimed. Meanwhile I wasted $20 ### ⭐⭐⭐⭐⭐ Works well to power small guitar amp *by S***0 on November 4, 2024* I like this. I am using this to power a small vacuum tube amp that I built for my guitar. I can not crank to full voltage but I can get it up to about 200 volts and it runs a little warm but is stable and does not introduce noise into the amp. This works much better than having to have a high voltage transformer etc. You can run this off 12v batteries and get off the grid and play a tube amp without heavy transformers etc. ### ⭐⭐⭐⭐ Vibration safety *by A***S on July 20, 2025* Works Perfectly ! Coil must be glued by silicon! ## Frequently Bought Together - High Voltage DC-DC Boost Converter 12V to 150V-420V 170V 230V & 1.25V-12V 6.3V Filament Adjustable Step Up Power Supply 2-Way PSU Regulator Module for Tube Preamp/Nixie Tube - Acxico High Voltage DC Converter Nixie&Magic Eye Tube HV Power Supply Module 250V/6.3V - High Voltage DC-DC Boost Power Supply Converter Module for Vintage Vacuum Nixie Tube, Magic Eye 6E2 Level Indicator 9V-12V DC Input, 80V-380V DC Output (Green) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v](https://www.desertcart.nz/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-06-22*