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Wall Plate Adapter for Tiny Reflow Controller
I’m slowly converting to surface mount components in my electronic tinkering. It makes things easier in so many ways, but soldering little things is hard! The humble toaster oven or hot plate helps,...
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Zoom Recorder Technical Details
I’ve used many Zoom recorders over the years, sometimes pushing them outside their design intentions. This page collects the “secrets” I’ve discovered through testing and experience. It will grow as I...
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Choosing a Contact Mic For Field Recording
(This page is part of a series. See the rest of my contact microphone pages here. I also have a similar page about Choosing a Hydrophone for Field Recording.) I’ve been experimenting with contact...
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3D-Printed DIY Contact Microphone
(This page is part of a series See the rest of my contact microphone pages here.) I developed this contact mic design for my students in 2020. I wanted them to have durable tools with great sound, but...
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PIP Stereo Piezo Preamplifier
(This page is part of a series. See the rest of my contact microphone pages here.) The piezo sensors in contact mics and hydrophones need a buffer preamp to sound their best. There are many practical...
View ArticleContact Microphone Pages
This is my landing page for all things related to contact microphones. I’ve been building and using them for years, so I’ve tried a lot of things! My Contact Mic Pages Choosing a Contact Mic For Field...
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Battery Drain Fix for Chinese Digital Calipers
The Problem I’d be lost without accurate digital calipers. Inexpensive imported ones work great, but they all seem to have one annoying flaw: They use an always-on microprocessor and lack a hardware...
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A Darkroom Safelight Headlamp
A friend showed me the wonders of a safelight headlamp and I was hooked. The light is always where you need it, and nowhere else. Some headlamps include red LEDs, but the main light is usually a...
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Repair Amaran P60c LED Panel
In June 2024 I figured out how to tear down the Amaran P60c LED panels to replace a broken power jack. It’s not obvious, so here are the steps: (For more tests and repair advice, see my Aputure /...
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Aputure / Amaran LED Light Info
Here is some technical info I’ve collected about the excellent and affordable LED lights from Aputure / Amaran. I spent some time with the Amaran P60c RGBWW LED Panel and the Aputure LS-60x point...
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