Posted on Sunday, 22nd February 2009 by Auw Jimmy
Some of people on the net says that Gainclone is one of the shortest amplifier in the world. Some people could make it less than 32 mm on the signal path. Check it here! But I don’t have any intention to match or compete with them. Remember, I do what people don’t, so don’t bother with what they are doing
The parts, most likely, are my old stock. Most of the time, I use what I have on hand (and also buy some if I do really need that). So you can see a lot of mixed brand here. I try to pick the best from what I have.
The first thing that I do is, to install the input ground resistor. Not just because this is the most important, but simply because I need to put two resistor in a “not common” way. The picture below will explain more than what I can say. It’s Vishay S139 (similar with S102) Ultra-High Precision Bulk Metal Foil Resistors. It’s 0.01% tolerance So 11K is 11K, not with additional value behind the dot. I need to use 22KOhm, but only have 11KOhm on hand, so I use two.
Not a genius job, just put two in series and they will do the job perfectly.
Tags: Capacitor, DIY-Audio, gainclone, LM1875, resistor
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