Solar - Terrestrial Data

Monday, March 24, 2008

Shapes of things

Bits and pieces for my amplifier project are piling up in cupboards and in my garage. Today I gathered some of the most important pieces to see how they would fit onto the chassis I bought recently and as you see, there is plenty of room. I could even fit in two power-tubes side by side and as the power transformer is big enough, I could really go for two tubes and reach close to 200 W but that would be slightly overkill in the garage :) Anyway, I may install the second socket for further experiments but leave it empty at the moment.
Behind the preamp and driver section is plenty of room to install reverb- and spring-echo circuits if I want to.

The speaker cabinet is shaping up in my garage. It is built out of pieces cut out of 21 mm. thick plywood of spruce. It is not just a simple box with an open back, It is not an airtight compression box either. It is provided by internal ducts arranged to improve the respons in the bass region. I will not reveal more until I have tuned and tweaked it. The process reminds me of tuning an accoustic guitar. In the end I may fail and then I just convert it to a traditional open (or closed...) box.

Sunday, March 16, 2008

The Piggy Bank


This is our stove in the corner of our livingroom. It is really a kind of piggy bank because it saves us money. It is made by a company called Uunisepät, it would be something like "Stove-Smiths" translated into english. Their website is here: www.uunisepat.fi
If you follow the links to the "Classic" models and then "Nostalgia" you will find some variations and technical details. Our stove is the corner model.
The height is 2.2 meters and the total weight is 1500 kg.
Today, Sunday, we spent another day working in the woods.
 
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