Solder time…

I have an ambition to make a clock out of an old Russian IV-18 VFD tube. Other people have done it, and probably better than I will, so why not 🙂

These are fairly high voltage so the MAX6921 seems to be the chip of choice. It’s not possible to get them in through-hole variants so that means dealing with a SOIC-28 package. That scared me at first…

I bought some of the 6921s cheaply (China, obviously) and had acquired some SOIC-28 to PIP-28 adaptor boards on eBay – not expensive, can’t remember what they cost (£3 for 6?).

One I made earlier...

I had tried one last year some time. To be honest, these things are easier to solder than through-hole stuff. If you watch the man do it first:

[embedplusvideo height=”379″ width=”625″ standard=”http://www.youtube.com/v/b9FC9fAlfQE?fs=1″ vars=”ytid=b9FC9fAlfQE&width=625&height=379&start=&stop=&rs=w&hd=0&autoplay=0&react=1&chapters=&notes=” id=”ep1838″ /]

Awesome stuff. Never thought I’d be able to do anything like that.

Job be, er, jobbed

I used “Solder Paste” on the bottom one. The rest were done with regular (“proper job”) solder and a flux pen. The solder paste was a bit crap to be honest, or I didn’t get on with it, flux pen + proper solder I could do. Solder paste is in the bin.

After finishing this, I got on to the next thing…

All ur minion r belong to us

Basically, it’s an Arduino Leonardo clone with a built-in RF transceiver. What’s not to like?

It was a KickStarter project called Minion. I’ll be getting more than the 4 I have already. These things have so much potential.

Of course, I cocked it up. That story is for another time though…

This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *

*