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I guessed that I would probably want to convert something after completion. Its bass 774hc74ap be cut off, so I added 2. In order to suppress switchinig noise of regulator, setting a PI Low-Pass-Filter which is built by capacitors and toroidal core coil. It cannot be a responce of “sound”.

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Braid black and red cables reminds me of poison spider. For larger image, please click. Please do at your own risk. My emplanation may be very doutful, so please refer following sites. In order to 74hc4ap jitter noise, I adopted re-clock circuit.


Unit sounds based on this enclosure, so if this standard point moves, unit cannot reproduce true sound.

Light unit as a feather can do. I adopted the method of used only a resistor because I wanted to get true sound. It got much more clear like urban escape. For example, used only a resistor, buffer of OpAmp, buffer of vacuum tube, impedance matching circuit of line transformer and so on.

From sampling theorem, we can completely restore original signal when we sample over 2f. Further more, it was already converted into DIP package. This was in my pocket luckily. I felt a bit of luxury.

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I was about to eat them by mistake. I replaced ohm resistor with ohm one and adjasted potentiometer, then I got very clear sound. So I decided to make DAC which would use no negative feedback. I’m ashamed of the sight which have been added BG-C as smoothing capacitor. Technics turntable — modifying SLMK3 This removing tool is low pass filter.


Speaker is bass reflex type and its unit is 12cm. I remember as above. This is excellent for the theme, “I want to make cool audio devices at small cost”. It was strange that they had to be the same datawheet signals. He said following things eagerly in his lecture. Why it didn’t suit in my case?

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I asked 2ch liver, brilliant mind in Japanese largest internet discussion board, for instruction and I finally got the datashwet. I’m sorry for my bad English.

Speaker unit should be grounded on completely unmoved point. I don’t take any responsibility for the trouble that can occur for this homepage. It was very easy to process acrylic material.