--- product_id: 351067443 title: "High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU" brand: "qinizx" price: "165 zł" currency: PLN in_stock: true reviews_count: 9 category: "Qinizx" url: https://www.desertcart.pl/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v store_origin: PL region: Poland --- # 12V to 150-420V adjustable boost High-frequency switching for ultra-low noise 3 precision potentiometers for voltage/current tuning High voltage DC Boost Module 150V-420V 1.25V-12V Adjustable Filament PSU **Brand:** qinizx **Price:** 165 zł **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your vintage gear with precision power—because your sound deserves the boost! ## 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?** 165 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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 Freedom:** Run your vintage tube amps or DIY projects anywhere with 12V DC input—ditch heavy transformers and embrace portability. - • **Compact Powerhouse:** Sleek 90x55x32mm PCB fits effortlessly into your tube preamp or Nixie tube projects without bulk. - • **Silent Audio Integrity:** High-frequency switching tech ensures zero audio interference—pure, clean sound every time. - • **Thermal Management Insight:** Integrated heatsink and adjustable current control keep your module running stable and cool under load. - • **Dual Voltage Control Mastery:** Independently dial filament (1.25-12V) and high voltage (150-420V) outputs for ultimate customization. ## Overview This High Voltage DC-DC Boost Converter transforms a 12V DC input into finely adjustable high voltage outputs ranging from 150V to 420V, alongside a filament voltage regulator adjustable between 1.25V and 12V. Designed for tube preamps and Nixie tube applications, it features three potentiometers for precise voltage and current tuning, high-frequency switching for minimal noise interference, and a compact PCB with integrated thermal management. Ideal for professionals seeking customizable, portable, and clean power solutions for vintage audio and display projects. ## Description Product description Package Included: 1 x HV Adjustable Power Supply Board Specification Note: The higher the output voltage, the lower the output current. This has nothing to do with product quality. Tube Preamp DC12V Boost Converter High Voltage Filament Filter Power Supply Board DC12V boost, with a set of filament and a set of high voltage, two sets of voltage adjustable. Input voltage: 12VDC Output voltage: 150V-420VDC, 1.25V-12V DC filament voltage regulator is adjustable.(Chip voltage regulation, there is a little pressure drop.) Frequency: 80KHZ 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) 20K potentiometer: adjust filament voltage (1.25V-12V DC, max 3A) 30K potentiometer: adjust high voltage voltage (150V-420V DC) 1K potentiometer(near the heatsink): adjust high voltage current (30-40 mA) Tips: As the output voltage increases, the power decreases. This product is suitable for tube pre-amplifier audio equipment. If you want more power, you can increase the radiator of IRF840 or parallel IRF840. The inductor should also use EI or the core of the boost inductor should be large enough, and the enameled wire should be thick.camera power supply, car power,communications equipment supply,etc. Review: Unreliable high voltage output and completely unstable - As other commenters have said, the high voltage is completely unreliable - after setting it at about 300V unloaded, it drifted way down below 190V over time. Loading it made no difference. The heat sinked transistor is also super hot and I think the board has a massive thermal instability. Do not waste your money. 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 | #394,218 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,724 in Power Converters | | Brand | QINIZX | | Brand Name | QINIZX | | Current Rating | 3 Amps | | Customer Reviews | 3.0 out of 5 stars 33 Reviews | | Item Dimensions D x W x H | 2.16"D x 3.54"W x 1.25"H | | Item Weight | 0.26 Pounds | | 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 ### ⭐ Unreliable high voltage output and completely unstable *by P***N on September 8, 2025* As other commenters have said, the high voltage is completely unreliable - after setting it at about 300V unloaded, it drifted way down below 190V over time. Loading it made no difference. The heat sinked transistor is also super hot and I think the board has a massive thermal instability. Do not waste your money. ### ⭐⭐⭐⭐⭐ 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.pl/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v](https://www.desertcart.pl/products/351067443-high-voltage-dc-boost-module-150v-420v-1-25v-12v) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-30*