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Misaligned bolt hole
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Doesn't stick and melts when device is on
Not so safe safety-earth connetion
Not so safe safety-earth connetion
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I had to redo the lousy ground wire
Thermo couple
Hrrrmmp!
OPTO isolation slot
Good policy - wasn't implemented
YOUYOE 858D+ hot air soldering station
Intelligence inside
A little mishap
Painful camera setup
50 chips
YOUYUE 858D+ PCB
YOUYUE 858D+ PCB
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Egg warmer
OP-70 precision opamp
7805
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Isolation slot
OPTO + TRIAC + SNUBBER
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Some cleaning would have been nice
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Should I be concerned?
The top two wires / traces carry 220V AC. The next one is safety-earth. Then 24V DC for the fan, then 2 wires for the thermo-couple, and lastly 2 wires for a reed switch.
Let's hope those line-voltage carrying wires don't overheat and melt their insulation.
Let's hope those line-voltage carrying wires don't overheat and melt their insulation.
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