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Old Mar 05, 2014, 06:58 PM
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Thanks guys,

Sounds like this is normal then.

The clicking sound isn't loud so just must be the lamp lighting on and off.

Sometimes though it flickers madly like morse code...other times just a gradual on and off.

Cheers,

Steve
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Old Mar 05, 2014, 07:31 PM
MK
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Quote:
Originally Posted by Rich in ILM View Post
I think it is the other way around with the red light. Light on means current is flowing and iron is heating and light off is temperature reached? That is why the light is constant when you first turn the iron on?
Ah yes, you are correct. When I was replying I wasn't home. Just ran downstairs to the basement and verified. On means heating up and off means set temp. has been reached.
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Old Mar 05, 2014, 07:32 PM
MK
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I wonder if the fast flickering is a symptom of a loose connection to the LED. If it gets hot enough and reaches the set temperature I wouldn't worry too much.
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Old Mar 05, 2014, 08:08 PM
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^ I was curious about that too - [internal connections]
It would be nice if the LED would stay solid until the right temp is reached,
and then go off, but, apparently they all just flicker..

If the LED is triggered by a thermostat, [or thermal-couple?]
I'm also curious if the pulsing is probably just caused by cheap components..

Either way - These things still work perfectly!
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Old Mar 05, 2014, 08:15 PM
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Quote:
Originally Posted by DirtyDovi View Post
^ I was curious about that too - [internal connections]
It would be nice if the LED would stay solid until the right temp is reached,
and then go off, but, apparently they all just flicker..

If the LED is triggered by a thermostat, [or thermal-couple?]
I'm also curious if the pulsing is probably just caused by cheap components..

Either way - These things still work perfectly!
What has me sold is how tight the temp range is. Most guns are either way too hot or cold. For that reason I always wanted a Hakko but could never get myself to pay that much money. The HK clone is a great value IMO.
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Old Mar 05, 2014, 08:37 PM
MK
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Yes to Rich and DirtyDovi, it holds a surprisingly tight temperature. Mine does "flicker" when it reaches the set temp. but not Morse Code like flickering. More like 1.5 sec. on, then 1.5 sec. just idling around.

Could also be components with not a tight tolerance like you said. Hey, $15???
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Old Mar 05, 2014, 09:54 PM
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Rich,
I couldn't agree more. These things are great!

MK,

It's nice to confirm that all of these setups seem to be functioning the same..
Yup, when the LED on mine blinks, it is more like just a random flicker..
Temp-wise, you guys are right - They hold amazingly!
[Even when heating up thicker things than I should be]

My dad had a client that needed a section from a custom window repaired..
Similar to how stained-glass is made - sections of metal brazed together..

I was out of map-gas, so I fired up the solder station, max'd it out,
and was able to do a perfect repair! [medium size RS tip]

And yeah - All for 15 bucks!
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Old Mar 05, 2014, 10:30 PM
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Quote:
Originally Posted by DirtyDovi View Post
Rich,
I couldn't agree more. These things are great!

MK,

It's nice to confirm that all of these setups seem to be functioning the same..
Yup, when the LED on mine blinks, it is more like just a random flicker..
Temp-wise, you guys are right - They hold amazingly!
[Even when heating up thicker things than I should be]

My dad had a client that needed a section from a custom window repaired..
Similar to how stained-glass is made - sections of metal brazed together..

I was out of map-gas, so I fired up the solder station, max'd it out,
and was able to do a perfect repair! [medium size RS tip]

And yeah - All for 15 bucks!
I think the heat accuracy and hold is a combination of a good feedback circuit and a ceramic heating element that has some latentcy.
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Old May 03, 2014, 12:55 PM
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hello i try to replace my broken soldering iron of my yihua 936.
I buy one hakko 907 but it's not same plug.
I change plug with my old one but i have problem the led never blink.
i dont keep my old iron, i can't check where is my mistake.
Can someone help me?
This is picture of my hakko 907.
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Old May 17, 2014, 03:06 AM
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nobody?
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Old Jul 14, 2014, 09:02 AM
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Pen Solder Dispenser Mod -





Sam -
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