Homemade Diffusion Pump
Posted: Fri Aug 25, 2017 4:37 pm
Here is a photo of my attempt at building a diffusion pump as a 14-year old schoolboy.
It was my own design based on a picture in an encyclopedia article. I never got round to testing the pump and don't know if it would have worked.
I was given an old vacuum sputter coater shortly after finishing it and used that for my plasma experiments.
It sat in a damp shed for about twenty years so the central mild steel jet support has rusted and stained the copper and brass parts.
I've recently stripped down a rather lethal looking Kaiser 80kV 50mA power supply that I hope to modify for fusor use:
The power supply uses a triode in series with the output to regulate the voltage and also has a 240V 80kV isolation transformer.
I have two of these 500kg monsters and stripped this one down because I managed to drop it on its side while unloading it from my truck. The castor and baseplate were damaged and I don't know if the tube has broken. Fortunately the transformers and rectifiers look undamaged.
Regards,
Justin Fozzard
It was my own design based on a picture in an encyclopedia article. I never got round to testing the pump and don't know if it would have worked.
I was given an old vacuum sputter coater shortly after finishing it and used that for my plasma experiments.
It sat in a damp shed for about twenty years so the central mild steel jet support has rusted and stained the copper and brass parts.
I've recently stripped down a rather lethal looking Kaiser 80kV 50mA power supply that I hope to modify for fusor use:
The power supply uses a triode in series with the output to regulate the voltage and also has a 240V 80kV isolation transformer.
I have two of these 500kg monsters and stripped this one down because I managed to drop it on its side while unloading it from my truck. The castor and baseplate were damaged and I don't know if the tube has broken. Fortunately the transformers and rectifiers look undamaged.
Regards,
Justin Fozzard