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Repair SONY DSC-P93

Repair SONY DSC-P93

September 9, 2023 by ryanzheng
Repair a SONY DSC-P93 that has stuttering OVF zoom and an error message
Resurrecting AGM Lead Acid Battery

Resurrecting AGM Lead Acid Battery

August 15, 2023August 15, 2023 by ryanzheng
Although not regular flooded type, AGM batteries can also be restored by adding water if it's not too far gone.
Building a NAS with a Cursed Motherboard / 用灵车主板组装一台NAS

Building a NAS with a Cursed Motherboard / 用灵车主板组装一台NAS

October 23, 2022August 15, 2023 by ryanzheng
I built a NAS with a cursed motherboard and TrueNAS Scale
Sharp GF-777 Restoration 夏普GF-777翻新

Sharp GF-777 Restoration 夏普GF-777翻新

August 23, 2022August 15, 2023 by ryanzheng
I restored a Sharp GF-777, replacing all belts and friction wheels, and the pinch roller

80dB Noise Preamp

August 22, 2022 by ryanzheng
A very high gain (80db or x10000) differential AC signal amplifier
Alesis M1 Active MK2 Repair 维修记录

Alesis M1 Active MK2 Repair 维修记录

July 26, 2022August 15, 2023 by ryanzheng
Repairing a pair of classic Alesis monitor speakers 维修一对经典的Alesis监听音箱
Roland XP-80 Repair 罗兰XP-80合成器维修

Roland XP-80 Repair 罗兰XP-80合成器维修

July 21, 2022August 15, 2023 by ryanzheng
A Roland XP-80 synthesizer repair writeup

Battery Powered Phantom Power Supply 电池供电的幻象电源供应器设计

July 20, 2022August 3, 2022 by ryanzheng
A 3x AA battery powered phantom power supply design

Recent Posts

  • Repair SONY DSC-P93
  • Resurrecting AGM Lead Acid Battery
  • xrdp RDP Blank Screen
  • A script to recursively extract nested zip files
  • Building a NAS with a Cursed Motherboard / 用灵车主板组装一台NAS

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