Anode Control Circuit:
Parts List:
OK1
EL817
OK2
EL817
OK3
EL817
OK4
EL817
OK5
EL817
OK6
EL817
R1
1k
R2
1k
R3
1k
R12
1k
R13
1k
R14
1k
R4
2.7k
R5
2.7k
R6
2.7k
R15
2.7k
R16
2.7k
R17
2.7k
S24
SOCKET 24
SV3
CONN_ANODE
This circuit controls passing the HV to the anodes of the tubes. The micro-controller multiplexes the
anodes by turning each of them on it turn.
Notes:
•
The Opto-Isolators fit into the 24 pin socket snugly. Be careful to put them in the right way round.
The dot denotes pin 1 and should be on the side closest to the micro-controller. All 6 should fit
perfectly into the 24 pin socket.
•
The Opto-Isolators are socketed because they are sensitive to heat and are easily destroyed if you
apply too much heat to them. Putting them in a socket means that we don't run the risk of
destroying them.
Hint:
Putting the resistors in
A trick that can speed assembly up is to
use a piece of normal sticky tape to hold
things in place while you solder them.
This makes is easier to solder and gives a
better result.
Place the components, and then
temporarily tape them into place.
Using tape to hold resistors in place
Содержание Nixie Clock v6
Страница 7: ...Schematic Below is the schematic for the clock...
Страница 9: ...Construction Kit Contents When you unpack the kit you should find the following contents...
Страница 12: ...At the end of the low voltage circuit build your board should look like this Low Voltage Circuit...
Страница 16: ...At the end of the high voltage circuit build your board should look like this High Voltage Circuit...
Страница 20: ...After you have installed the Anode controls that part of the board should look this...
Страница 24: ...The wiring for the tubes is this...