DR-135 TNC 5V regulator modification

I recently acquired an Alinco DR-135 radio with an integrated EJ-41U TNC unit. I decided to replace the TNC with an Argent Data Tracker3 T3-135 module. After installing the module, however, the TNC board would not power up. I measured the 5V line feeding the TNC module at around 3.5V. When I replaced the module …

Netgear GS108T-200NAS Hacking

Netgear GS108T-200 I’ve got a number of these switches in use. They are quite handy as they do not require external power when PoE is available, and have some nice monitoring features. For a project, I needed to control a non-connected device in a location where I only had the switch and some other closed …