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Look out for something with the lowest series resistance (ESR) as possible.
A resistance is a lossy component with a noise proportional to Boltzmann's constant. You can say that any resistor consists of a voltage source and the resistance. You want to find a resistor with the lowest voltage source output, also with respect to temperature.
Well Blackgate only sells on their name. In their book, specs shouldn't be mentioned or documented since they don't need to. They have unscientific documents made by themselves which one has to ask for in order to see.
I'm especting Sanyo OS-CONS to be a good match since they are specifically sold as low-esr. You'll find them in computer hardware too, if it was a little expensive especially. Otherwise i think SMD caps have very low esr too.
For the crystal you will need to measure the crystal square waveform. The only thing that matters here is a perfect square waveform. You will need to finetune it by experimenting with different capacitor values - i'm expecting 20 pF or so. Capacitor grade and brand is of no meaning hear. Look for standard ceramic disc types.
For ICs, find the data sheet and find the recommended component values. If a specific type is noted, it has an impact, but often it does not matter what you choose. This is digital electronics, not coupling analog electronics.
__________________ Home: RME Digi 96/8 PAD Toslink -> AQVox DAC -> Sommer Cable Corona RCA IC -> SDS Labs Headphone Amp 1.2 w/ Dr. Meier's Crossfeed. -> HD-650 / HD25-1 OFC / AKG K340 / HF-1
..........IBM/Lenovo T60p 2623-DDU -> USB/BNC digital output -> Sommer Cable Focusline BNC -> AQVox DAC (Modded BNC, galvanically isolated) -> Same as above Portable: Sony Ericsson W810i 4GB -> Mini³ Amp -> HD25-1 OFC Member of Team Danish Head-Fi'ers
Look out for something with the lowest series resistance (ESR) as possible.
A resistance is a lossy component with a noise proportional to Boltzmann's constant. You can say that any resistor consists of a voltage source and the resistance. You want to find a resistor with the lowest voltage source output, also with respect to temperature.
Well Blackgate only sells on their name. In their book, specs shouldn't be mentioned or documented since they don't need to. They have unscientific documents made by themselves which one has to ask for in order to see.
I'm especting Sanyo OS-CONS to be a good match since they are specifically sold as low-esr. You'll find them in computer hardware too, if it was a little expensive especially. Otherwise i think SMD caps have very low esr too.
For the crystal you will need to measure the crystal square waveform. The only thing that matters here is a perfect square waveform. You will need to finetune it by experimenting with different capacitor values - i'm expecting 20 pF or so. Capacitor grade and brand is of no meaning hear. Look for standard ceramic disc types.
For ICs, find the data sheet and find the recommended component values. If a specific type is noted, it has an impact, but often it does not matter what you choose. This is digital electronics, not coupling analog electronics.
thanks Daroid.. appreciated
most of the caps on the prodigy are sanyo os-cons
so, lowest ESR possible - important
Originally Posted by LordofDoom
Glad you decided to post here Napalm
lol nobody wants to talk about caps anywhere else.. ill try here..
Originally Posted by finaxe
Can you tell me what are the opamp that you've soldered?
practically any good quality film cap will beat those BlackGate electrolytic caps for output. I saw a lot of HUGE electrolytic caps on output, why? Unless you're driving headphone directly, you need no more than 4.7uF (for 10K impedance amps), and I would personally say 1.0uF is great since computers are likely to be used with 50K impedance amps.