--- product_id: 351067443 title: "High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power" brand: "qinizx" price: "€ 49.49" currency: EUR in_stock: true reviews_count: 9 category: "Qinizx" url: https://www.desertcart.com.cy/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v store_origin: CY region: Cyprus --- # 150-420V adjustable high voltage output Compact PCB size 90x55x32mm 3 precision potentiometers for voltage & current tuning High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power **Brand:** qinizx **Price:** € 49.49 **Availability:** ✅ In Stock ## Summary > ⚡ Power Your Passion with Precision Voltage Boosting! ## Quick Answers - **What is this?** High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power by qinizx - **How much does it cost?** € 49.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v) ## 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 - • **Plug-and-Play Power Boost:** Step up from 12V DC input to high voltage output effortlessly, eliminating bulky transformers and enabling sleek, modern builds. - • **Compact & Versatile Design:** Small PCB footprint fits seamlessly into custom projects, enabling portable, off-grid power solutions. - • **Adjustable Current Limiting:** Control high voltage current (30-40mA) to protect your delicate electronics and optimize performance. - • **Dual Voltage Control Mastery:** Fine-tune both filament (1.25-12V) and high voltage (150-420V) outputs with precision potentiometers for tailored power delivery. - • **High-Frequency Switching Tech:** Experience ultra-low noise and high signal-to-noise ratio, perfect for sensitive audio and tube preamp applications. ## Overview The QINIZX High Voltage DC-DC Boost Converter transforms 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 high-frequency switching technology, it delivers low noise and high signal integrity, ideal for tube preamps and nixie tube projects. Compact and equipped with three potentiometers for precise voltage and current control, this PCB-mounted module offers a versatile, transformer-free power solution for professional and hobbyist electronics alike. ## Description Buy High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power | 170V 230V Output, 6.3V Filament Adjustable, 2-Way PSU Regulator Module, Step Up Power Supply, 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 | #279,127 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,228 in Power Converters | | Brand | QINIZX | | Brand Name | QINIZX | | Current Rating | 3 A | | 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 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 150-420V & 1.5-12V Step Up Power - Image 1](https://m.media-amazon.com/images/I/6102IBFQNbS.jpg) ![High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power - Image 2](https://m.media-amazon.com/images/I/61UoyXdkiES.jpg) ![High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power - Image 3](https://m.media-amazon.com/images/I/61hntcXp+JS.jpg) ![High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power - Image 4](https://m.media-amazon.com/images/I/61ezJxDr-zS.jpg) ![High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power - 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.com.cy/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v](https://www.desertcart.com.cy/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-07-30*