Taste The Code

Diagnosing and Repairing a SANKEI TCR95 Studio Mixer from the 80s

I opened up my mom's vintage boombox to bring it back from the dead. A bad switch contact and a possible short were keeping it from working at its full potential again.

Mar 20, 2026 — 5 mins read

Full Electrical Isolation for Your ESP32 Power Switch Using an Optocoupler

Using an optocoupler instead of a transistor in a custom PCB power switch gives full electrical isolation and removes noise from MPPT solar charge controllers.

Mar 13, 2026 — 5 mins read

How I Fixed a Broken Charging Port by Upgrading the Speakers to USB-C

Learn how I easily fixed two broken speakers by replacing the old USB port with an affordable USB-C breakout connector.

Jan 16, 2026 — 5 mins read

Improving my workbench with a PCB Vise

I upgraded my ability to hold PCBs on my bench with a 3D printed PCB Vise.

Dec 14, 2024 — 5 mins read

Making a jig for programming Sonoff basic switches

I made a custom jig to help me out with programming lots of Sonoff basic switches.

Dec 07, 2023 — 2 mins read

Baby Monitor Camera - Easy Repair

I repaired one more device that was suffering from cracked solder joints.

Oct 06, 2023 — 1 min read

Drill battery conversion from NiCd to Lithium

I converted an old NiCd drill battery to Lithium by using salvaged 18650 battery cells from old laptops.

Mar 10, 2023 — 2 mins read

Custom power bank for electronics projects

I made a custom power bank that is primarily designed with portable battery operated projects in mind.

Aug 27, 2022 — 2 mins read

ATtiny Programming Shield for the Arduino Uno

I made a programming shield for the Arduino Uno that allows you to program up to 3 ATtiny chips at a time.

Jul 17, 2022 — 2 mins read

I failed to repair a stud finder from the flea market

I'm not always successful when repairing stuff and this is one of those examples. I wasn't sure if I wanted to share this one but it is still educational on the troubleshooting approach.

May 27, 2022 — 1 min read

Taste The Code

Diagnosing and Repairing a SANKEI TCR95 Studio Mixer from the 80s

I opened up my mom's vintage boombox to bring it back from the dead. A bad switch contact and a possible short were keeping it from working at its full potential again.

Full Electrical Isolation for Your ESP32 Power Switch Using an Optocoupler

Using an optocoupler instead of a transistor in a custom PCB power switch gives full electrical isolation and removes noise from MPPT solar charge controllers.

How I Fixed a Broken Charging Port by Upgrading the Speakers to USB-C

Learn how I easily fixed two broken speakers by replacing the old USB port with an affordable USB-C breakout connector.

Improving my workbench with a PCB Vise

I upgraded my ability to hold PCBs on my bench with a 3D printed PCB Vise.

Making a jig for programming Sonoff basic switches

I made a custom jig to help me out with programming lots of Sonoff basic switches.

Baby Monitor Camera - Easy Repair

I repaired one more device that was suffering from cracked solder joints.

Drill battery conversion from NiCd to Lithium

I converted an old NiCd drill battery to Lithium by using salvaged 18650 battery cells from old laptops.

Custom power bank for electronics projects

I made a custom power bank that is primarily designed with portable battery operated projects in mind.

ATtiny Programming Shield for the Arduino Uno

I made a programming shield for the Arduino Uno that allows you to program up to 3 ATtiny chips at a time.

I failed to repair a stud finder from the flea market

I'm not always successful when repairing stuff and this is one of those examples. I wasn't sure if I wanted to share this one but it is still educational on the troubleshooting approach.

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Diagnosing and Repairing a SANKEI TCR95 Studio Mixer from the 80s

I opened up my mom's vintage boombox to bring it back from the dead. A bad switch contact and a possible short were keeping it from working at its full potential again.

Full Electrical Isolation for Your ESP32 Power Switch Using an Optocoupler

Using an optocoupler instead of a transistor in a custom PCB power switch gives full electrical isolation and removes noise from MPPT solar charge controllers.

How I Fixed a Broken Charging Port by Upgrading the Speakers to USB-C

Learn how I easily fixed two broken speakers by replacing the old USB port with an affordable USB-C breakout connector.

Improving my workbench with a PCB Vise

I upgraded my ability to hold PCBs on my bench with a 3D printed PCB Vise.

Making a jig for programming Sonoff basic switches

I made a custom jig to help me out with programming lots of Sonoff basic switches.

Baby Monitor Camera - Easy Repair

I repaired one more device that was suffering from cracked solder joints.

Drill battery conversion from NiCd to Lithium

I converted an old NiCd drill battery to Lithium by using salvaged 18650 battery cells from old laptops.

Custom power bank for electronics projects

I made a custom power bank that is primarily designed with portable battery operated projects in mind.

ATtiny Programming Shield for the Arduino Uno

I made a programming shield for the Arduino Uno that allows you to program up to 3 ATtiny chips at a time.

I failed to repair a stud finder from the flea market

I'm not always successful when repairing stuff and this is one of those examples. I wasn't sure if I wanted to share this one but it is still educational on the troubleshooting approach.

Topics

Search

Tags

Free 850mAh Battery, USB-C Charging and a Screen from a Vape ?!?

Digital Microscope Review for PCB Inspection and Soldering

How to Sort Salvaged 18650 Cells with a Battery Tester

Repairing a Vintage 80s SANKEI Boombox: Two Faults Fixed