บทความ

Now I managed to do one more set of fluoroskopic images on the same principle as in previous article, but in a better quality. Again, I use tube 6VS-1 known from previous articles and sticker shining in the darkness (teletubbies:)). Power supply (stabilized switched HV) is similar as before except...

Now I used X-ray cassettes instead of luminiscent stickers :). These are two X-ray cassette of dimensions 18x13 cm with green amplifying screens CURIX ORTHO REGULAR and KODAK LANEX REGULAR. REGULAR type corresponds to the sensitivity of the 400. Radiation source is the same as in previous article....

Those pictures were made using the anode voltage of only 40kV and current 200uA, ie anode power only 8W. X-ray cassettes described in previous article were used, serving as a fluoroscope. First, cassete in its original condition was used (all photos except for the first two), then one of the...

I bring to you another series of fluoroscopic photos. They were made at the anode voltage of 40kV and current 200uA, anode power only 8 W. Just for interest I given here the whole schematic of the HV anode supply. Detail about the supply is here . KODAK LANEX REGULAR screens (green, sensitivity...

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งบประมาณ 500 บาท

Power factor correction 450W เป็นเทคโนโลยีใหม่ที่ช่วยในการแก้ไขค่าตัวประกอบกำลังไฟฟ้า ให้กับอุปกรณ์เครื่องใช้ไฟฟ้าทำงานได้อย่างเต็มประสิทธิภาพ และเหมาะสมตรงตามที่อุปกรณ์ไฟฟ้าต้องการ แถมยังช่วยประหยัดค่าใช้ไฟฟ้าภายในบ้านได้อีกด้วย
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Power factor...

Building Noise Canceling Headphones

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In today’s hectic and noisy world, we are all searching for a little peace and quiet. Well, you might not be able to slip off to a tranquil forest for an hour or two, but you can block out background noise with the...

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Make Your Own Magnet Charger
You can charge it!

By Peter Rooke
December/January 2010
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Part 1 described the thought processes leading to the design of a charger and the preparation of the plans. Next the enjoyable part: machining metal.

My usual supplier of...

Ok, so magnets don't actually 'wear out', but they do lose strength over time. This is especially true of earlier magnets, since most modern magnetic materials were unknown before the second world war. For example, Bulle clocks use either a carbon steel or cobalt steel magnet (there is conflicting...

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PO_PC by Pongsiri.rar

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Circuit wizard worksheet
selector-TR By Pongsiri.rar

อิเล็กทรอนิคส์ คอมพิวเตอร์ เล่นผ่านโปรแกรมมันก็เอ๋อๆครับ แต่วงจรจริงใช้ได้ปกติครับ

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วงจรควบคุมพัดลมระบายอากาศ ด้วยอุณหภูมิ ใช้mje350 เป็ตัวเช็คความร้อนทีแผ่นheat sink
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Auto Power Off
Posted Apr 18, 2013 at 3:09 pm We are surrounded by battery operated equipment of all kinds, and this array is growing still. Manufacturers and designers lean over backwards to make sure that their equipment draws a small current and can thus be operated by a battery. This has its...