Electronics > Beginners
Change Triac in soldering station ?
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lordvader88:
My main soldering station is a cheap $40 ebay model with a Triac. I think it's a 40-60W iron, I find that out, I don't remember anymore. There's only the triac, and 2-3 resistors, switch light, basically. I'll map it out soon. I have tons of resistors, and pots too.
So I want to boost it's power by 10-20W and see if everything's fine and works better. Until I get a real Hakko FX-888d, why not?? I bought some BT136-600 TRIAC's 600V 4A, just at random so I'd have TRIAC's
https://www.promelec.ru/pdf/BT136-600-NXP.pdf
I'll map out the circuit in my station maybe today, does anyone know what I should change if I put that more powerful BT136 in ? Assuming the tip can handle a few more watts.
I have a variac, so I can slowely turn up the voltage to see if it works. But how is a lower rated triac biased with the resistors? For all I know they can be left the same.
What about a 125V dimmer switch for a 60 or 100W lightblub, can that be used to upgrade my cheapo station a few watts ?
Yes I could power the SS off the variac at 135V, but I'm assuming that thing gets hot just plugged in, I don't want to use it for that.
Zero999:
Changing the TRIAC won't make any difference to the power output of the heating element.
If the supply voltage is 120V and the rated power is 60R, the element will have a resistance of 60Ohms and changing the TRIAC will not alter that. The maximum power will still be determined by the heating elelment's resistance and supply voltage.
By the sounds of it, the cheap temperature controller is just a lamp dimmer, with no feedback. I'd recommend investing in a real temperature controlled iron, with feedback, to keep the temperature constant.
The TRIAC is just a switch. Changing it will have the same effect on power, as changing a light switch.
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