Dec 03
** This Schematic need driver , Please Send Email to admin@makecircuits.com for driver
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Dec 03
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Dec 02
Second only to the type of printer toner, the choice of paper is a very important consideration. You need to use a medium that will go through your printer and will preserve the printed image but won’t absorb the toner or bind it too tightly. For this, glossy paper is the answer. In this demonstration, we’ve used Kodak Ultima Picture Paper–specifically their “High Gloss” 71 lb (270g/m2)–as it works well and should be available throughout North America and possibly Europe. It is their picture paper with the heaviest weight and is said to be useful for “Professional quality photographs”. This also means that it’s expensive: $1 or more per sheet in small quantites. Rumour has it that you can use many different types of glossy paper, including pages from the Times magazine, but no one here has attempted this yet.
To save time, effort and expenses it’s a good idea to combine multiple images to try and fill the entire 8.5×11 page with PCBs. Remember that these must be printed as mirror images of the final PCB in order to be correct after transfering them to the copper board. On the left you can see an ordinary sheet of paper used during the trial run and (to its left) the glossy koday paper with the 9 PCBs. [link]
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Oct 28
frequency-counter-operating
It can measure from 16Hz to 100Hz signals with a maximum amplitude of 15V. The sensitivity is high, the resolution is 0.01Hz. The input signal can be a sine, a square or a triangle waveform.
The counter can be used in many applications. For instance, to observe an oscillator’s accuracy, to measure the mains frequency or to find out the rpm of a motor that is connected to an encoder.
frequency counter circuit [link]
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