The pinout for the LM3914N is seen here:

Pins 1, 18, 17, 16 ... 10 correspond to the first, second, ... tenth LED.
LM350 is a adjustable voltage regulator. It works very similarly to the LM3914N. The desired output voltage is obtained by manipulating 2 resistors in a voltage divider configuration.
Here is the design soldered onto a protoboard.
Hope this clears things up.
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