Electronics and Tech

This is the place for audio and electronics stuff, home automation adventures, Arduino programming and puttering, and other tech tinkering.

A rant on dual banana jacks: about-dual-bananas/

2020.03.17
A few notes on why your internet is getting slow during the covid-19 lockdown:
https://farmedia.com/a-few-notes-about-your-ip-connection/

2019.12.01 – Electret mics
– Notes on using and testing electret mics: electret-mics-and-pro-audio/

2019.11.11 – Facmogu F900S amp
– Looking at a cute little (card deck sized) audio amp, the F900S class D amp. It has Bluetooth, an aux in, and a USB “soundcard” input, and an overly optimistic 50 watt power rating, but still nifty gadget and a good value at $24 USD.
More about it here: Facmogu – micro audio amp

2019.07.30 – Tube (or “Valve”) Line level Audio buffer
– It turns out this topic was a tad more complex then I thought, here’s my notes on a couple of these units. Taking a look at: Tube Audio Buffers

2109.07.07 – Rebuilding the Scott LK-150 Power Amp
– Note and pics from the rebuild.

2019.06.26 – The Home Automation page is here.
The Home automation project is moving along, and actually working! It’s based around a Universal Devices ISY994i controller, which handles and centralizes Insteon, Z-Wave, and IR control protocols.
My main interests were security and safety lighting, and also automating and fixing some lighting issues. Along the way, some other applications suggested themselves.

Last Updated on 2021-07-07 by Daev Roehr