QBL progress

This weekend I spent a few hours on Saturday getting some issues I’ve had with my Station interface project with the sound paths to the sound CODEC chips. Luckily I could solve the problems and could spend some time programming again, getting closer and closer of getting something which might be useful. However quite a lot of small mistakes made so I will need to do a hardware revision. Not only because of mistakes though but also because I’ve realized I want a few more functions.

Sunday I went to work to do some regular work (that I get paid for) but after that I didn’t really feel like going home so I stayed and thought I’d build a bit on a kit I bought some time back from http://www.communication-concepts.com/. I bought it to be used as a preamp, so we could be able to get decent output of the 4-1000A amp with 100W rigs (after BPFs etc less than 100W) but since we kind of scrapped the 4-1000A amp and is using the HV transformer in the QBL project instead I don’t really have much use for the amplifier, but why not build it anyway just for fun.

Today Tuesday I got bored sitting at home after work so I went back and continued work on the QBL tube socket and I also cut a hole for the socket in the center plate in the amp. I had some teflon lying around that I used to mill some isolator and I am quite happy with the result. Now I need to figure out a chimney. I also had a friend help me to design some gears for the stepper motor potentiometer (feedback) that I’ll get 3D printed. When I have those parts I can continue to design the holders for C1, C2 and the L with the stepper motors.

Basement work contd…

Another long weekend at SJ2W. I went down on Wednesday with my girlfriend who unfortunately had to leave on Friday back up north again. However I spent most of my time down in the basement getting everything ready for the concrete pour. I am not a very patient guy who doesn’t like to ask too much for help, so I ended up mixing the concrete myself which was a bit hard work but after 3.5 hours of continues work all concrete was poured. The result is OK, not as good as I had hoped though since I didn’t get the floor very even but it’s not a problem.

I also bought a MIG/MAG welder today, an American quality brand Miller and it’s a 3-phase 240A so should be pretty useful.

Basement work

Since the water damage we had in the basement a couple of years ago the operators have slept in the kitchen, which is far from optimal both from my point of having beds in the kitchen, but also from the operators view of getting sleep during SSB contests. So now I am working in the basement to get the operators their room back and also for me to have a little office space when I try to do my regular job stuff from SJ2W.

I am putting down floor heating even though it won’t be connected in the near future, but at least I have the option in the future if changing the house heating system to a water based system instead of direct electric heating.

Hopefully we’ll get some people together in the near future so we can do the big concrete pour (mixing ourselves).

By the way, very important news! I got a new coffee maker for SJ2W so now nothing will be able to stop us 😉

7el for 6m up

This year I decided early that we need to get the 6m yagi up. It’s not one of our contest bands so it has always been something that has been “When we have time”. Since we never have time I decided it was time to get it up this spring before the sporadic E season starts. I doubt however that I will enjoy 6m very much, but we will see. SM2XJP helped me to put it up.

It is a 7el homebrew OWA design on a 8m long boom.