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Hi Tony, Wow. Just checked and I ordered it in February 2017! It's been sitting on the shelf waiting for three years lol I bought another one because I could never get my previous one to work again. I'm in Australia, so I'd rather not wait for you to post now that I've actually started the project. ...

Hi Tony,

My batch 4 kit didn't come with a polyfuse. It has a 0.47 ohm resistor in the packet that I can only assume is R28.
I'd rather put in a polyfuse, but I need to know what to buy. What are the voltage and current ratings?

Cheers Tony. I searched the element14 Australian site and couldn't find those resistors anywhere. It doesn't help that they're not noted as fusible. They'd still have to come from the UK, but at least they're a lot cheaper. I found the same ones on the RS Austalia site and they're local stock, so I'...

Hi Tony, Thanks for replying at this busy time of year. As I half expected, I need to source these components from all over the world. The only items I can get in Australia are the diodes and some of the transistors. I'll get the T12s from RS and the rest off eBay from Hong Kong. It seems that almos...

Hi Tony, I'm getting nowhere with this and think I should start replacing components. Without a circuit diagram I can't figure out why the nixies won't work (Even if I had one, I'm not sure it would help lol). The LEDs seem to be working now, though. Where do you think I should start? Should I repla...

Hi Tony, with one lead on the tab of T12 and the other on one end of R1, I get fluctuation between 2.5 and 5 volts. At the other end of R1, I get fluctuation between 4.6 and 5 volts. Another worrying development. I noticed D17 flickering. When I took the PCB out of my PCB clamp, the LED went out. If...

I'll check when I get home. Thanks

BTW What do you mean by o/c?

Hi Tony, Using the ground on the USB connector, I get a steady fluctuation between zero and 0.4 vdc at pin 1 and a steady 2.1vdc at pin 9. I used a better meter this time because my cheap one was giving readings with only one lead touching. With the good meter, I get nothing at all on the pads where...

I get around 2 volts across pins 1 and 9.

Hi Tony, I'm measuring only about 3 volts at C6b and nothing at C6a (mine is a v1.11a PCB). L1 and T12 are stone cold. I've re-soldered everything and still not working properly. I have noticed that the LED under the 4th nixie (D5) isn't working either. For some reason, I can measure continuity acro...