GM7NVA  

IO85PO

 

The shack during the winter 2003-4 DX season.

Below the operating position is the power station of the system. Two Heatherlite Explorers and a TL922 all using 3-500Z tubes keep the shack warm in winter. These are spread across the HF antennas to cut down on valve stress and tune up times while switching from one band to the next chasing rare DX. The amps are protected by AMP UK 'Soft Start' for smooth power up from cold at the start of each session. This all helps to prolong the life of the 3-500's. All the amps use the same valves to make life easier when it comes to spares. Behind these are various LPF boxes and a major ground buss. (You can see the copper tube running along the wall next to some antenna cables). It is so important to have a good RF grounding sytem to keep this system as clean as possible. The DC feeds are also under the bench.

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