--- product_id: 351067443 title: "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" brand: "qinizx" price: "321 kr" currency: DKK in_stock: true reviews_count: 9 category: "Qinizx" url: https://www.desertcart.dk/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150v-420v store_origin: DK region: Denmark --- # 12V to 150-420V adjustable boost High-frequency switching for ultra-low noise 3 precision potentiometers for voltage/current tuning 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 **Brand:** qinizx **Price:** 321 kr **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-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 by qinizx - **How much does it cost?** 321 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150v-420v) ## 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 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: 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 | #599,670 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,753 in Power Converters | | Brand Name | QINIZX | | Current Rating | 3 Amps | | Customer Reviews | 3.0 3.0 out of 5 stars (33) | | 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 | | 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-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 - Image 1](https://m.media-amazon.com/images/I/6102IBFQNbS.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/61UoyXdkiES.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/61hntcXp+JS.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61ezJxDr-zS.jpg) ![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 - 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.dk/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150v-420v](https://www.desertcart.dk/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150v-420v) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-26*