turtlegang717

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USB DAC DIY

ぺるけ式　トランス式USB DAC (Sansui ST-71 version)

前作（2019/01/26）の音がいまひとつであったので、ぺるけ式に設計変更しチューニングを実施した。トランス２次側の抵抗は1kΩに固定した状態で１次側の抵抗を調整したところ620Ωで落ち着いた。ST-71はぺるけさんがDACの初期検討段階で「音はかなりまともで」と評しておられたが、LCフィルタと組み合わせることで（増幅はしないが）のびやかに鳴っている。これにて完成とする（2024/04/07）。

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Urban Nature by Naoki Ito, 2009

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#cool #pennsylvania #water tower #old #kupo #graffiti #sky #clouds #structure #rust #decaying #cloudy #overcast

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“To hell with being ashamed of what you liked.”

— Ralph Ellison

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Musings from Anna Fusco

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rly struggling rn ur on my mind all the time

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“Focus on what you can do rather than what you can’t. Small steps turn into miles.”

— Unknown

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Mt. Rainier National Park, USA by Emilie Hofferber

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(Waxing Cresent March 11th, 2024)

#moon #2024 #march11th #march #waxing #cresent #waxing crescent #sky #cool #sunset #nightphotography #nighttime #nature #pennsylvania #black #blue #night #clouds #tree line #trees #crisp #dark #dark sky #space

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nokia 3200

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“I think it’s very healthy to spend time alone. You need to know how to be alone and not be defined by another person.”

— Oscar Wilde

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“The relevant question in psychiatry shouldn’t be what’s wrong with you, but what happened to you.”

— Eleanor Longden

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꧁★꧂

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(2007)

#2007 #old computers #compaq #windows xp #sunshine #sunlight #sunrays #old #vintage #desk #pc #computer #old computer #cool #throwback #wood #nolstagia #oldschool #workbench #gold #2000s