PCB assembly and testing

[Tony]

The exact order of assembly will depend on the preference of the builder but convention is to fit the resistors/diodes first followed by capacitors, transistors and ICs in that order.
The Final batch (4) contains a couple of changes - these will be indicated by *** in the description. If you received a BAG1 with pale brown MDF nixie sockets then you have a batch 4 kit.

After preparing a suitable working space take the PCB and the 680K resistors. Fit these in locations marked for R3,4,5,8,9,20,21,23,24 and 26 as shown:
***These are 2m2 (red red green).

V1.1 board:

[Tony]

Fit the 1K2 or 1K resistors in locations marked for R6,7,17,19,22,29 as shown:

V1.1 board:

[Tony]

Fit the 100R resistors in locations marked for R10,14,18,27 as shown:

V1.1 board:

[Tony]

Fit the 5k6 resistors in locations marked for R1,12,13 as shown:

V1.1 board:

[Tony]

Fit the 470R resistors in locations marked for R2 and 25 as shown:

V1.1 board:

[Tony]

Fit the 270K resistor in the location marked R16 as shown:
***240k (red orange yellow) or 560k (green blue yellow)

V1.1 board:

[Tony]

Fit the 22K resistor in the location marked R15 as shown, watch out as the board is starting to get crowded:

V1.1 board:

[Tony]

Fit the 1N4148 diodes in locations marked for D8,9,10,11,12,13,14 and 15 as shown: NOTE the band marked on the end of the diode body must face the same way as shown in the photograph, this is also indicated on the PC with a thick white band.

V1.1 board:

[Tony]

Fit the brown 10n or 33n ceramic capacitors in locations marked for C2,4 and 5 as shown:

V1.1 board:

[Tony]

Fit the red or yellow plastic .22u capacitors in locations marked for C9,10,11,12 and 13 as shown:

V1.1 board: