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Review on πŸ’‘ TekPower TP30SWII: Efficient 30 Amp DC 13.8V Analog Switching Power Supply with Noise Offset by Roberto Manzer

Revainrating 5 out of 5

Exceeds expectations

The old power supply I had for my hams was dry and beyond repair so I did a little research before replacing it with this one. I was hesitant to buy it because I was wondering what I would get for just $100 and I still have an unwarranted prejudice against things made in China. "Made in China" has meant cheap in terms of quality and price for decades. Old installations die hard. In truth, I've found that electronics made in China are even better than those made in Japan. This power supply is further proof. What I like about it: 1. It looks and feels good. Doesn't feel like cheap plastic. The handles don't wobble. Everything is solid.2. The analogue counter has clear lines and is easy to read, in contrast to the photo.3. It's practically silent. Previously, the fan did not need to be turned on.4. The voltmeter and ammeter functions are very useful. The power pack with the counter is mandatory.5. There are three power connections. Snap-in socket, cigarette lighter and clamp. The convenience of having multiple ports is very nice.6. I haven't used the variable power or noise-cancellation features, but it's nice to know they're there. This is a fraction of the size of my previous power supply.8. Price. I can't say it will last long because I just received it. And I can't tell how it performs at the limit because I just ran it at 8 amps. But so far I'm very satisfied. -------------------------------------------------------- ------- --- ---------------------- ----------- Update: I've had it for a few weeks now and am still very happy with it. Although it says 30 amps, it's really only 25 amps, but that's enough for a 100 watt transmitter. Note that the three ports of the connector have different ratings. The rear connection alone delivers 25 amps. The AC voltage regulator works and I can increase it if I want. I didn't have to use the squelch as it didn't make any noise. remains absolutely silent. A minor disappointment is that the voltmeter doesn't tell you what voltage you're actually outputting. It's just a gauge showing what you're installing it for. If you want to see how much the voltage drops with a hard pull, you'll need to hook up an external voltmeter. In general I would say that for radio amateurs the only power source available.--------------------Additional update: It's been 7 months and I still think it is a very good buy. There are many power supplies on the market. Prices vary and I've heard some of them are rubbish so I was nervous when I decided to buy this one which is cheaper than most. I think that's why I'm so happy. Instead of being rubbish, it really is exceptionally good. The fan only came on once, so I know it's working. The good news is that it was quiet when it actually happened. I thought the noise canceling feature was a useless extra, but it's come in handy a few times now. When I'm not using the pin I now have a small digital voltmeter connected to the connector. I don't really need it, but it looks good. This is one of those voltmeters you can get at Revain for $2.50. I usually leave the unit set to 13.7 volts and forget about it, but there have been a few occasions where the variable voltage feature came in handy when I wanted to test the performance of some QRP settings. Above all, you want the power supply to be there, doing its job, staying quiet and not crashing. This power supply can do everything. But I'm also pleased that additional features that I'd gladly do without actually come in handy from time to time.

Pros
  • Few competitors
Cons
  • unreliable