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Nixie Clock IN-17 Assembly Instructions And User's Manual page 23

Tube clock kit

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NOTE: An integrated circuit U5 DS3231 is in SMD (surface mount device) case, which is very difficult for
soldering. Due to it soldered in advance.
7. RTC (real time clock) circuit components assembly
U5
DS3231
C6
0.1uF
R5, R6, R7
10kΩ
BAT_1
CR2032 Battery socket
Battery
3V CR2032
7.1. Take the resistors R5, R6, R7 and bend them, like pointed in item 3.1. Insert each resistor into the
board holes marked as R5, R6 and R7 respectively and solder it leads.
7.2. Solder capacitor C6 on the board at location C6.
23

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