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Control board for soldering station model 936B, for 907A soldering iron with a thermocouple as temperature sensor, as in popular ceramic-based nichrome wire heaters.
Many manufacturers use similar typical circuits in the production of assembly type 936B soldering stations, without a digital indication of the temperature of the soldering iron.
A red LED is installed to indicate the power supply to the soldering iron heater. By the frequency of its flickering, one can judge the current operating mode of the station.
The board is built on the basis of the LM358 operational amplifier, a BT-137-800 symistor is used as a power switch.
Attention! the board is designed to work with a heater that has a built-in thermocouple as a temperature sensor, i.e. with soldering iron heater type A1322. Do not use RTD soldering iron.
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
