|The K2 is packed and ready for the move|
Saturday, October 19, 2013
Friday, September 27, 2013
|Packing things up for a short time|
|Coming up Bifilar toroid winding|
Thursday, September 5, 2013
|It's crystal time|
Installing the crystals1. I check and double check to make sure I am mounting the proper crystal and mounting it in the proper place.
2. I tape the crystal in place by using some painters masking tape (very easy to remove) with a row of crystals I will run one long piece of tape across the top of the crystals and then to the board. Don't worry about a flush fit to the board at this moment that can be tweaked once the crystal is in place.
|5 crystals that were taped|
4. Remove tape and reheat each leg single soldered leg while pushing down on the crystal to seat in firm and square on the board. Again applying heat at short intervals.
5. Solder all second legs of crystals and then trim flush with board.
Grounding the can of the crystal
Now comes the fun part and when you really have to take your time and check and double check things. I like to make the final build look as neat as possible and here is a step that takes some to to get it right. In the kit building process the manual has been asking you to keep the clipped leads and this is where they come in handy. You can take these clipped leads and use them to ground the cans of the crystals. Again care must be taken to not heat the crystals up to much as to damage them. I have a few trick up my sleeve to help the builder to avoid heat damage while grounding the can.
Here are the steps I do to ground the crystal can's
- I find a discarded lead in my container of "discarded leads" I take my time to shape the lead to fit neatly on the top of the crystal (some leads you are told to solder to the side as well).
Add flux to top
- I then add some flux to the top of the crystal to be grounded and then add some solder to the top of the crystal. The flux allows the solder to flow nicely and not much heat is needed to do this.
- I then fit the preformed ground lead in place. I make sure the lead has an extra long tail as it goes through the board. This way I can hold it in place as I add a little solder to the soldering iron tip and then tac the ground lead to the top of the crystal.
- Making sure the lead looks neat I then solder the lead at the circuit board.
- I now can go back to the top of the crystal and add more solder if needed.
Saturday, August 24, 2013
Last week I received an email from Patrick ON4CDJ he was asking me to break down the solder blob method I use to strip off the coating on the magnet wire. So instead of writing a long post with pictures I decided to put a video together. So here it is and do email me if you have questions or something you would like to see added.
Sunday, August 11, 2013
When I first started kit building some years ago it was the dreaded toroid winding that I never looked forward too. After winding and rewinding over time it has not become a dark task, it has taken some time to get the hang of it but I can say that I no longer get uptight about the process. I have learned some tricks and some never ever skip steps when it comes to toroids.
I am in the process of building my second K2 rig from Elecraft and there are lots of toroids to be wound. Now having said that if you want you can order per-wound toroids from the toroid guy. If you do order toroids that are per-wound I would encourage you to try to wind your own as well. What I have found is it's only practice that is needed to get the hang of the winding thing. In the past I have built many Elecraft kits were toroids have been involved, I have learned as I said some tricks, some must do stuff and things to stay away from when it comes to this art.
Saturday, August 3, 2013
My other blog on the other hand has in and around 400-500 visits per day. But 20-30 visits per day is not bad I think for a brand specific blog. Not everyone is building things and an Elecraft k2 to even narrow it down more. I am very happy with this blog to just put it out there to help out fellow builders and those who are building an Elecraft K2. To my surprise today I was checking the visit to this blog and between yesterday and today it has spiked to 80!!! Not sure what is going on there but I hope it keeps up.
Wednesday, July 24, 2013
|The three components|
|Here is the spot...notice trace humps to right|
|The completed result|