--- product_id: 351067443 title: "High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power" brand: "qinizx" price: "235 Lei" currency: RON in_stock: true reviews_count: 9 category: "Qinizx" url: https://www.desertcart.ro/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v store_origin: RO region: Romania --- # 12V to 150-420V adjustable boost High-frequency switching for ultra-low noise 3 potentiometers for precise voltage/current tuning High Voltage DC-DC Boost Converter 12V to 150-420V & 1.5-12V Step Up Power **Brand:** qinizx **Price:** 235 Lei **Availability:** ✅ In Stock ## Summary > ⚡ Boost your power game with precision and silence! ## 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?** 235 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/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 - • **Off-Grid Freedom:** Run your vintage tube gear or DIY electronics from 12V batteries—ditch the mains and embrace portable, clean power anytime, anywhere. - • **Compact Powerhouse:** Sleek 90x55x32mm PCB footprint fits effortlessly into your custom builds without bulky transformers or heavy components. - • **Triple-Tuner Control:** Fine-tune filament voltage (1.25-12V), high voltage output, and current limits independently for tailored power delivery and optimal performance. - • **Dynamic Voltage Mastery:** Seamlessly step up 12V DC input to a customizable 150-420V output, empowering your tube amps and nixie projects with precision high voltage. - • **Whisper-Quiet Operation:** Advanced high-frequency switching technology ensures minimal audio interference and a pristine signal-to-noise ratio—perfect for audiophile-grade applications. ## Overview The QINIZX High Voltage DC-DC Boost Converter transforms a 12V DC input into a highly adjustable 150-420V output with an additional filament voltage regulator (1.25-12V). Featuring three potentiometers for precise voltage and current control, it operates at a fixed 80kHz high-frequency switching rate to minimize noise interference. Compact and lightweight, this PCB-mounted power supply is ideal for powering tube preamps, nixie tubes, and other high-voltage electronics, offering portable off-grid capability with a 90-day manufacturer warranty. ## 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: 0 out of 2 usable, low quality assembly - While the low voltage portion works well and delivers the 6.3 V I need the high voltage side is not functional. The first unit only put out about 160 V with no load and then sagged to under 90 V with a 7 ma load. Second unit was able to be adjusted to the 250 V no load that I needed but sagged to under120 V with the 7 ma load. Completely unusable. Quality wise parts are crooked on the board and look like it was assembled and soldered by someone with no care for the quality of the unit. I ended up going with 2 separate DC-DC converters. One for 6.3 V and another for 250 V. Finally diagnosed the problem with the high voltage side of the supply. The board has a 220uf and a 470uf electrolytic cap. The caps have the values clearly printed on the surface that is facing up. On the board the values are clearly printed at the location they belong which is about 3/4" apart. The 220uf cap was on the 470uf position and the 470uf cap was in the 220uf position. I removed them and soldered them into the correct position and the HV supply is now working fine. Total lack of QC and obviously not tested. Guessing the entire batch was assembled incorrectly. 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 | #655,252 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,914 in Power Converters | | Brand | QINIZX | | Brand Name | QINIZX | | Current Rating | 3 A | | Customer Reviews | 2.9 out of 5 stars 34 Reviews | | Item Highlight | 170V 230V Output, 6.3V Filament Adjustable, 2-Way PSU Regulator Module, Step Up Power Supply, For Tube Preamp/Nixie Tube | | Item Weight | 4.16 ounces | | Manufacturer | QINIZX | | Maximum Frequency | 80 KHz | | Minimum Frequency | 80 KHz | | Model | 12VBoost-HVPSU | | Mounting Type | PCB Mount | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 12VBoost-HVPSU | | Power Source | Corded Electric | | Specification Met | CE | | UPC | 723258876523 | | Unit Count | 1 Count | | Warranty Description | 90 Day Manufacturer | ## Product Details - **Brand:** QINIZX - **Current Rating:** 3 A - **Mounting Type:** PCB Mount - **Power Source:** Corded Electric - **Specification Met:** CE ## 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 ### ⭐ 0 out of 2 usable, low quality assembly *by T***G on June 9, 2022* While the low voltage portion works well and delivers the 6.3 V I need the high voltage side is not functional. The first unit only put out about 160 V with no load and then sagged to under 90 V with a 7 ma load. Second unit was able to be adjusted to the 250 V no load that I needed but sagged to under120 V with the 7 ma load. Completely unusable. Quality wise parts are crooked on the board and look like it was assembled and soldered by someone with no care for the quality of the unit. I ended up going with 2 separate DC-DC converters. One for 6.3 V and another for 250 V. Finally diagnosed the problem with the high voltage side of the supply. The board has a 220uf and a 470uf electrolytic cap. The caps have the values clearly printed on the surface that is facing up. On the board the values are clearly printed at the location they belong which is about 3/4" apart. The 220uf cap was on the 470uf position and the 470uf cap was in the 220uf position. I removed them and soldered them into the correct position and the HV supply is now working fine. Total lack of QC and obviously not tested. Guessing the entire batch was assembled incorrectly. ### ⭐⭐⭐⭐⭐ 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.ro/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v](https://www.desertcart.ro/products/351067443-high-voltage-dc-dc-boost-converter-12v-to-150-420v) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-10-27*