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Specifications
- Brand Name: CIRMECH
- Origin: CN(Origin)
- Maximum Power Per Channel: 10W
- Model Number: QW-019D
- Package: Yes
- Channels: other
CIRMECH LM317 LM337 Positive and negative dual power adjustable power supply board diy kit
2.80
–
3.40
$
42
orders
/
16
reviews
Price history
- for 3 month
- for half a year
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2.38 $ (-15%)
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Customer Reviews
Anonymous
September 26, 2020
I have ordered kit but received assembled board instead. Four electrolytic capacitors exploded after powering board on. The reason was incorrectly installed bridge rectifier which resulted in applying opposite voltage to those capacitors. It appears like there is no quality control for assembled boards at all. Whoever buys those should be aware of this fact and check to make sure the components are installed properly. The case of one exploded capacitor almost hit me in the eye ( glasses were on :) ).
K***k
June 6, 2020
Be careful the holes are not metalized so when theres some force at the device the soldered surface around the hole get teared off. Especially when heated.. Other than this 1 fail. Perfect
Anonymous