That's one way to keep warm

I'm listening to Radio Napoleon on 1620 right now. He's coming in really well from the eastern side of the Netherlands and playing some good tunes. His musical taste is very similar to the mighty Radio Barones and it's a pleasure to listen to him. A little earlier, Wadloper was on the air from Friesland, with his big pal Relmus at the microphone. They were busy on 1638 kHz and sent me this picture of the transmitter while they were on air. I'm guessing the studio was nice and warm!

Valves glowing in the Wadloper studio