Copyright 2004, 2005, 2007 Sphere Research Corporation Nixie Clock Kit Instructions Page 14
Assembled Combined board Kit
ASSEMBLY STEPS, both U6DNC clock board types:
1.
Important Construction Variations:
The headers at J9, J10 and J11 are installed
only if you want to attach a remote display
, they are
optional
on the combined board, and are
required
on the split version. They can be installed on the top or bottom
side, it does not affect operation or cable design. The DIP version of the temperature compensated oscillator
at U7 (which is an oversized package) can interfere with a top mounted header and cable at J9.
2.
Insert and solder all the resistors, if you orient them all in the same direction, checking for the correct
value is much easier. Install the
larger
polyswitch at
F1.
3.
Insert and solder the diodes/rectifiers. Observe the correct polarity, the parts have a banded end
(cathode) that must match the banded marking on the circuit board. Note that the input bridge D1, D2, D4
and D5 is NOT normally required (unless an AC power supply is used), and jumpers are normally
installed at D1 and D5. Note that D6 is a schottky rectifier, 1N5817 or similar, and D100 is a fast high
voltage rectifier, type MUR160 or similar. Be careful not to mix these parts up with the other rectifiers,
which may look almost identical.
Check these parts carefully after insertion, a mistake here can be
hard to find later, but can cause serious failure.
Содержание U6DNC Series
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