--- product_id: 76106120 title: "TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset" brand: "tekpower" price: "1122.22 DT" currency: TND in_stock: true reviews_count: 9 category: "Tekpower" url: https://www.desertcart.tn/products/76106120-tekpower-tp30swii-30-amp-dc-13-8v-analog-switching-power store_origin: TN region: Tunisia --- # 30A max current output Noise offset for silent operation 9-15V adjustable DC voltage TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset **Brand:** tekpower **Price:** 1122.22 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power your passion with precision and silence! ## Quick Answers - **What is this?** TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset by tekpower - **How much does it cost?** 1122.22 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/76106120-tekpower-tp30swii-30-amp-dc-13-8v-analog-switching-power) ## Best For - tekpower enthusiasts ## Why This Product - Trusted tekpower brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Silent Stability:** Noise offset knob eliminates interference, ensuring crystal-clear communication. - • **Tailor Your Voltage:** Adjustable 9-15V output lets you customize power for every unique setup. - • **Built to Last & Protect:** Overheat and short circuit safeguards backed by a 1-year USA warranty. - • **Power Up with Precision:** Delivering a robust 30 amps max current to keep your devices running flawlessly. - • **Triple-Port Convenience:** Snap-in, cigarette lighter, and terminal outputs for versatile connectivity. ## Overview The TekPower TP30SWII is a professional-grade 30 Amp DC switching power supply designed for Ham/CB radios and amplifiers. Featuring a stable 13.8V output with adjustable voltage from 9 to 15V, it offers low ripple noise and a unique noise offset control to minimize interference. Multiple output ports and built-in safety protections make it a reliable, quiet, and versatile power solution, all backed by a 1-year USA warranty. ## Description TekPower TP30SWII 30 Amp DC 13.8V Switching Power Supply with Noise Offset The TekPower TP30SWII is an analog professional DC power supply for powering many devices such as Ham/CB radio and amplifiers. It is a highly stable, fused, high quality switching power supply with 13.8V fixed, 9-15V adjustable DC power output, and 30A max current. It has a main DC output on the back of the unit, a cigar socket, and a snap in output on the front. It has excellent line and load regulation, low ripple and noise. It is designed to minimize switching noise specifically for communication uses. When there is noise, you can use the noise offset knob to eliminate it. It has many safety protection such as overheat and short circuit protection. It comes with basic 1 Year USA warranty. Specification: Input Power: 110V AC 60Hz Output: DC 13.8V, 9-15V adjustable, 30A(Max) Cigarette Plug: 10A max Snap in output: 30A max Ripple voltage: less than 80mVp-p at rated load Fuse: 110V, 8A Dimensions: 7.5 X 2.8 X 7.5 inches Weight: 6 lb Package: TP30SWII Power Supply unit Power Cord User manual. Warranty Registration Card Review: Exceeds expectations - The old power supply I had for my ham radios bit the dust and was beyond repair so I did some research before I replaced it with this one. I was hesitant to buy it because I was wondering what I'd get for only $100 and I still have unfounded prejudice about things made in China. For decades, "Made in China" meant cheap in quality as well as price. Old attitudes die hard. The truth is, I'm finding that electronics made in China are even better than those made in Japan. This power supply is further evidence. What I like about it: 1. It has the look and feel of something well made. There is no cheap plastic feel to it. The knobs aren't loose. Everything is solid. 2. The analog meter, unlike the photograph, has distinct lines and it's easy to read. 3. It is virtually silent. So far, the fan hasn't had a need to come on. 4. The volt and amp meter functions come in very handy. A power supply with a meter is a must-have. 5. There are three ports for power. Snap in output, cigar lighter, and terminal. The convenience of having multiple ports is very nice. 6. I haven't used the variable power feature or the noise off-set, but it's nice to know they're there. 7. It is a fraction of the size of my previous power supply. 8. The price. I can't say this will last a long time because I just got it. And I can't say how it performs when driven to the limit because I've just run it at 8 amps. But so far, I am very pleased. ---------------------------------------------------- Update: I've had it a few weeks now and I'm still pleased with it. Though it says 30 amp, it's really only 25 amp, but that's enough for a 100 watt transmitter. Be aware that the three connector ports are rated differently. Only the back terminal will give you 25 amps. The variable voltage knob works and I can crank it up higher if/when I want. I haven't had to use the noise eliminator because it hasn't been creating any noise. The unit continues to be absolutely silent. One minor disappointment is that the volt meter doesn't show you what voltage you're actually putting out. It's just a gauge what shows what you're setting it for. If you want to see to what extent the voltage will dip with a heavy draw, you'll have to attach an external volt meter. All in all, I'd say that for ham radio, this is the one and only power supply to get. -------------------------- Further update: It's been 7 months now and I still regard this as a very fortunate purchase. There are a lot of power supplies on the market. Prices vary and I hear some of them are junk so I was nervous when I decided to buy this one which is cheaper than most. I think that's why I'm so pleased. Instead of being junk, it's in fact exceptionally good. The fan has gone on only once now so I know it works. The good news is that when it did go on, it was whisper quiet. I had thought the noise offset feature was a useless extra but there have been a couple of times now when it's come in handy. When I'm not using the snap-in port, I now have a small digital volt meter connected. I don't have much need for it but it kind of looks nice. It's one of those volt meters you can get on desertcart for $2.50. I usually leave the unit set to 13.7 volts and forget about it but there have been a couple of occasions when the variable volt feature has come in handy when I wanted to test the performance of a couple of QRP rigs. Primarily, you want a power supply to be there, do the job, remain quiet, and not fail. This power supply does all of that. But I'm also pleased to discover that the added features that I would have gladly done without are actually coming in handy now and then. Review: Great Power Supply - Its a great power supply it works great. In the picture I have installed a volt meter that is made to plug into a cigarette lighter socket it was cheap to buy on desertcart and is a nice addition to the power supply it gives it a digital voltage readout. The voltage on the digital readout is usually 13.8 and just fluctuates very slightly to a 13.7 I would say that is very stable. I do not get any voltage drop when I am transmitting and so far its staying very cool and it has not had the need for the fan to go on. The adjustable voltage is awesome when I crank it up I see the watt meter reading higher on the radio. I am not hearing any sound from the power supply or any sounds from the supply coming threw the radio. Everything is great!! The price was very good for a supply with all these features like the many connections. I like that it has a cigarette lighter socket works well for connecting a radio you may have that plug on also for the digital volt meter that I have installed. Great addition for only a few dollars. The switch to see volts or amps in the analog gauge is great to see your power draw on amps and seems to work well for a voltage readout also. I would highly recommend this power supply for anyone that wants a nice power supply and the price is great. ## Features - 13.8V DC Power Supply for Ham/CB Radio - 30A MaxCurrent Output - DC 9-15V adjustable - Cigarette Plug + Noise offset - 1 Year USA warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00L2M2Y5O | | Amperage | 30 Amps | | Best Sellers Rank | #465,837 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,117 in Power Converters | | Brand | Tekpower | | Color | black | | Connector Type | Barrel Connector | | Connector Type Used on Cable | Barrel Connector | | Customer Reviews | 4.6 out of 5 stars 539 Reviews | | Enclosure Material | Metal, Plastic | | Form Factor | Box | | Input Voltage | 110 Volts (AC) | | Manufacturer | Tekpower | | Material | Metal, Plastic | | Maximum Power | 414 Watts | | Mfr Part Number | FBA_TP30SWII | | Model Number | TP30SWII | | Output Current | 30 Amps | | Output Voltage | 13.8 Volts | | Output Wattage | 414 Watts | | Specification Met | FCC | | UPC | 851567004877 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Tekpower - **Color:** black - **Connector Type:** Barrel Connector - **Input Voltage:** 110 Volts (AC) - **Material:** Metal, Plastic ## Images ![TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset - Image 1](https://m.media-amazon.com/images/I/71rFn3V0c-L.jpg) ![TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset - Image 2](https://m.media-amazon.com/images/I/61-hkuWNR+L.jpg) ![TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset - Image 3](https://m.media-amazon.com/images/I/71GYPXYvXDL.jpg) ![TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset - Image 4](https://m.media-amazon.com/images/I/71-bZHuWMkL.jpg) ![TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset - Image 5](https://m.media-amazon.com/images/I/71xyztm5TJL.jpg) ## Questions & Answers **Q: Is this a regulated power source? The manual for my transceiver mentions using a regulated power source.** A: No this not a regulated power source , but i bet it well work on just about any transceiver you hook it up to with out anyt problems .I have used it on my TS-2000 and my FT-950 and several other vhf/uhf radios works great. **Q: if anyone uses this for hf bands, does this produce too much noise?** A: There are multiple harmonics separated by 33kHz, so you would see over a dozen of them on the 80m, 3.5-4.0MHz band. Moreover, they are not stable and will drift, often at 33kHz per minute. I have not tested to find how many HF band are affected, but 40m is as well. Up in the VHF bands, there does not appear to be the same issue. As others have noted, the harmonic can be temporarily shifted away from the frequency you are using, but depending on the drift rate you may have to use it frequently. **Q: What is the continuouse amp output rating?** A: As you know the surge is 30 Amps, but continuous on mine at least, is 25. The fan noise is actually not an issue (some folks complain about it) as I have mine sitting on a lower shelf of my desk so there is a buffer. The built in heat sink works and it does get warm if you're running for extended periods of time (>4 hours) but it works like it is suppose to. Haven't noticed any issues with the heat. The variable voltage works well I guess (I use the fixed 13.8v).I've only had it a couple months now so time will tell as it always does with electronics.Overall it's not a bad unit for the price. **Q: Is the amperage adjustable independently of voltage. I see no knob that allows this? I want to use for metal plating?** A: Voltage is adjustable but not amps does however have 3 outlets 1 - 30amp 1 - 10 amp and 1 - 3 amp hope this has helped 73. KG5LFK ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exceeds expectations *by P***R on May 12, 2015* The old power supply I had for my ham radios bit the dust and was beyond repair so I did some research before I replaced it with this one. I was hesitant to buy it because I was wondering what I'd get for only $100 and I still have unfounded prejudice about things made in China. For decades, "Made in China" meant cheap in quality as well as price. Old attitudes die hard. The truth is, I'm finding that electronics made in China are even better than those made in Japan. This power supply is further evidence. What I like about it: 1. It has the look and feel of something well made. There is no cheap plastic feel to it. The knobs aren't loose. Everything is solid. 2. The analog meter, unlike the photograph, has distinct lines and it's easy to read. 3. It is virtually silent. So far, the fan hasn't had a need to come on. 4. The volt and amp meter functions come in very handy. A power supply with a meter is a must-have. 5. There are three ports for power. Snap in output, cigar lighter, and terminal. The convenience of having multiple ports is very nice. 6. I haven't used the variable power feature or the noise off-set, but it's nice to know they're there. 7. It is a fraction of the size of my previous power supply. 8. The price. I can't say this will last a long time because I just got it. And I can't say how it performs when driven to the limit because I've just run it at 8 amps. But so far, I am very pleased. ---------------------------------------------------- Update: I've had it a few weeks now and I'm still pleased with it. Though it says 30 amp, it's really only 25 amp, but that's enough for a 100 watt transmitter. Be aware that the three connector ports are rated differently. Only the back terminal will give you 25 amps. The variable voltage knob works and I can crank it up higher if/when I want. I haven't had to use the noise eliminator because it hasn't been creating any noise. The unit continues to be absolutely silent. One minor disappointment is that the volt meter doesn't show you what voltage you're actually putting out. It's just a gauge what shows what you're setting it for. If you want to see to what extent the voltage will dip with a heavy draw, you'll have to attach an external volt meter. All in all, I'd say that for ham radio, this is the one and only power supply to get. -------------------------- Further update: It's been 7 months now and I still regard this as a very fortunate purchase. There are a lot of power supplies on the market. Prices vary and I hear some of them are junk so I was nervous when I decided to buy this one which is cheaper than most. I think that's why I'm so pleased. Instead of being junk, it's in fact exceptionally good. The fan has gone on only once now so I know it works. The good news is that when it did go on, it was whisper quiet. I had thought the noise offset feature was a useless extra but there have been a couple of times now when it's come in handy. When I'm not using the snap-in port, I now have a small digital volt meter connected. I don't have much need for it but it kind of looks nice. It's one of those volt meters you can get on Amazon for $2.50. I usually leave the unit set to 13.7 volts and forget about it but there have been a couple of occasions when the variable volt feature has come in handy when I wanted to test the performance of a couple of QRP rigs. Primarily, you want a power supply to be there, do the job, remain quiet, and not fail. This power supply does all of that. But I'm also pleased to discover that the added features that I would have gladly done without are actually coming in handy now and then. ### ⭐⭐⭐⭐⭐ Great Power Supply *by H***Y on May 21, 2019* Its a great power supply it works great. In the picture I have installed a volt meter that is made to plug into a cigarette lighter socket it was cheap to buy on Amazon and is a nice addition to the power supply it gives it a digital voltage readout. The voltage on the digital readout is usually 13.8 and just fluctuates very slightly to a 13.7 I would say that is very stable. I do not get any voltage drop when I am transmitting and so far its staying very cool and it has not had the need for the fan to go on. The adjustable voltage is awesome when I crank it up I see the watt meter reading higher on the radio. I am not hearing any sound from the power supply or any sounds from the supply coming threw the radio. Everything is great!! The price was very good for a supply with all these features like the many connections. I like that it has a cigarette lighter socket works well for connecting a radio you may have that plug on also for the digital volt meter that I have installed. Great addition for only a few dollars. The switch to see volts or amps in the analog gauge is great to see your power draw on amps and seems to work well for a voltage readout also. I would highly recommend this power supply for anyone that wants a nice power supply and the price is great. ### ⭐⭐⭐⭐⭐ This works great for an Icom 7300 *by D***C on April 30, 2026* I just take this for granted I turn the power on, and it powers my Icom 7300 . No, issues, no bad noises. It just works and does not take up a lot of space. I would recommend what an icom seventy three hundred all day long. ## Frequently Bought Together - TekPower TP30SWII 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset - RFAdapter RG8x Coaxial Cable, CB Coax Cable, 50ft UHF PL259 Male to Male Low Loss CB Antenna Cables, 50 Ohm for HAM Radio, Antenna Analyzer --- ## 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.tn/products/76106120-tekpower-tp30swii-30-amp-dc-13-8v-analog-switching-power](https://www.desertcart.tn/products/76106120-tekpower-tp30swii-30-amp-dc-13-8v-analog-switching-power) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-30*