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Step 4Modifying - the receiver
First of all I removed the unused transistors. After that I added the GND connection to each of the remaining 1AM. Then I added the wires for the power connection and soldered them to a 3V button cell battery holder. The wires for the LEDs where added and the LEDs aligned on a small ex board. I used a resistor array from an old floppy disc drive as the series resistors for the LEDs.
Soldering is a little bit tricky here, because there is not much space and my eyes are getting old .. and bad :-)
For the GND wires of the transistors I used tiny copper wires that are coated with insulating varnish.
Soldering is a little bit tricky here, because there is not much space and my eyes are getting old .. and bad :-)
For the GND wires of the transistors I used tiny copper wires that are coated with insulating varnish.
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