10 Jan '15, 9am

A New Handle For An Old Soldering Station

A New Handle For An Old Soldering Station

About 20 years ago, [Simon] spent a few week’s pay on a soldering station, a Micron W/2172. It served him well for the past few decades, but lately he hasn’t been able to find a supply of new tips for it. The Micron went into a cupboard and he upgraded to a newer Hakko soldering station. The old Micron was still sitting in the cupboard when [Simon] realized both stations use a 24V supply for the heater, and you can buy replacement Hakko handle for a few bucks. Having two soldering stations would be handy, so [Simon] set out to convert the old Micron station to accept Hakko handles. The only technical challenge for this modification was to figure out how the old circuit board in the Micron would read the thermistor in the new handle. The original circuit used a dual op-amp, with one side used to amplify the thermocouple and the other to compare it to the temperature set poi...

Full article: http://hackaday.com/2015/01/10/a-new-handle-for-an-old-so...

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