Hi All,
I am wondering if there are any of you out there familiar with the el cheapo Chinese made solderind stations. Particularily , say ones that are temp controlled. I have had a couple stations go down and saw that one of them had a cheap ceramic heating element. So found a guy on uTube who does upgrades to use HAkko style nichrome wound elements to replace a burned out ceramic.
Both of the stations that went down have a vert similar power supply setup. Both have 5 pin plugs ... One for tip ground ... 2 for the heater and 2 for the temp sensor.
My question here is this ... Of the 2 sets of connections for the heater and the temp sense ... which of the 2 are connected through the triac ? I'm gonna guess the heater is run by/off the triac since it requires the most power to get the heat. I am also wondering if this voltage/currnet is AC or DC. As far as I can tell it's AC, about 32 volt-ish. In both units there doesn't seem to be much of a rectifier to supply the DC for the LM324 and the TRIAC controller, UPC1701C (NEC). The voltage running the LM324 is about 32vdc, as far as I can tell. BUt like I say there is not much for rectification or regulation either.
Hope someone has had some experience with these absolutely cheap cheap trashy Chinese clones.
One station for sure is gonna get an A1321 replacement element if it will work ... that uTube vid shows ya how.
I am wondering if there are any of you out there familiar with the el cheapo Chinese made solderind stations. Particularily , say ones that are temp controlled. I have had a couple stations go down and saw that one of them had a cheap ceramic heating element. So found a guy on uTube who does upgrades to use HAkko style nichrome wound elements to replace a burned out ceramic.
Both of the stations that went down have a vert similar power supply setup. Both have 5 pin plugs ... One for tip ground ... 2 for the heater and 2 for the temp sensor.
My question here is this ... Of the 2 sets of connections for the heater and the temp sense ... which of the 2 are connected through the triac ? I'm gonna guess the heater is run by/off the triac since it requires the most power to get the heat. I am also wondering if this voltage/currnet is AC or DC. As far as I can tell it's AC, about 32 volt-ish. In both units there doesn't seem to be much of a rectifier to supply the DC for the LM324 and the TRIAC controller, UPC1701C (NEC). The voltage running the LM324 is about 32vdc, as far as I can tell. BUt like I say there is not much for rectification or regulation either.
Hope someone has had some experience with these absolutely cheap cheap trashy Chinese clones.
One station for sure is gonna get an A1321 replacement element if it will work ... that uTube vid shows ya how.