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MegaWatt vs. Chinese Imitation 30 amp switching power supply comparison

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.
 
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.

 
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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!
 
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