MegaWatt vs. Chinese Imitation 30 amp switching power supply comparison

[Tallman]

I like the multi use bench. Especially the RCBS Rock Chucker! Or is it the Rock Crusher?

 

[S&W357]

Thanks! You were right first time...Rock Chucker

 

[tba02]

I've tried two Megawatts. Both ended up hashing the shack. I'm staying linear from now on.

Really? Mine have been great. How did you isolate it to being the P/S?

 

[Mudfoot]

Really? Mine have been great. How did you isolate it to being the P/S?

Swapped supplies. Also see it on panadapter

 

[fogdog]

My 36 amp MW that's 4 years old shows up on my IC 7300's scope, and can be heard on the lower HF Bands. The fan is also noisy. I only use it for my Yaesu 2900 running 75 watts. It's all good though. Its a tank, and a darn good one. In the past 4 years there have been many things hooked up to this PS, and it has never failed. I do keep it clean. I use a separate PS to run the 7300, just to keep things as clean as I can.

 

[Mudfoot]

I just won't trust any switcher from now on. Just isn't worth it.

 

[CB590]

Well after 4 1/2 years my MegaWatt 30/33 fan finally started to whine to the point I couldn't focus on my HF rig noise.



and after I stuck in a small 60x60x25 fan as a temp fix that I bought new for a repeater project and was just laying around new.

Factory fan is 15mm thick in case you need to know and has a 2 pin white connector and about 6" or wire.

 

[Big Kahuna]

I've been using the same Megawatt PS for 9 years now - no issues, no hash, fan still same volume. Hard to believe how well it's held up, I was actually just looking at buying another one!

 

[CB590]

I've been using the same Megawatt PS for 9 years now - no issues, no hash, fan still same volume. Hard to believe how well it's held up, I was actually just looking at buying another one!

I contacted them. He is sending me another fan for a small nominal fee.

 

[tba02]

Mine picked up a tick after about 5/6 years, but that was due to being in a dusty location. Some compressed air and a little lube and right as rain.

 

[CB590]

I contacted them. He is sending me another fan for a small nominal fee.

got fan in today from MegaWatt and popped it in. All back to normal. Keeping my spare fan as a spare, back in the box it goes.