In a corner of the lounge sits my KX3, where sometimes I sit comfortably instead of being in the shack, sat on a stool. Needless to say, I can only really do this when my wife has gone out 😂
Well today was one of those times, so I switched the radio on heard a strong station on 17M and decided to try a contact. At 5W he couldn't quite make out what I was saying so I switched on the PSU to use 10W.
Switching on the Nissei PSU 1230D suddenly produced a huge amount of horrible noise! I checked all the connections were in order and tried again with the same result. The noise raised and lowered in a sweeping pattern and nothing I could do (including altering the voltage-adjuster) made any difference.The 1230D was a pretty inexpensive PSU but I liked the way it looked and I also appreciated that it had the traditional banana-plug sockets on the front and the more contemporary PowerPoles at the rear. I was quite disappointed to see that it was failing. After digging out the receipt, I discovered that it's two and a half years old.
So when looking for a replacement, I decided to forego all the fancy displays and adjusters and simply put the money into the PSU itself. So on that note, I looked at the Samlex range and opted for the SEC 1235G model which is a 30A PSU with no bells and whistles to distract from the main job of supplying steady, noise-free power.
I'll report back on the PSU when I've used it for a while. From what I've heard up to now though, they're meant to be a pretty good supply. I'll also open up the Nissei when I get a minute and see if I can find anything obvious at fault.
I have upgraded the Samlex SEC-1235G to include an extra outlet on the front panel. Click the image below for more information....