Something from my hardware

Hamradio

Antenna switch 3:1 for HF 1kW

Antenna switch 6:1 for HF 1kW  NEW 

Principle of antenna switching - 3x TRX to    4x antenna group    to 6x antenna - PDF document

Antenna switching - controller

TRX 2 switch

Dummy load 2kW+

FT-DX5000MP - antenna tuner repair

Home electronics

Hard watter softener  NEW 

WiFi relay switch - 4 pole  NEW 

Photovoltaic

Photovoltaic protection board  NEW 

Photovoltaic protection board - bigger  NEW