Over the last 50 years I have accumulated a large number of books, and a small number of collectable scientific instruments.  Having retired 6 years ago and recently moved house, I need to dispose of some of these, in addition to some furniture.   The items described below are for sale/disposal to a good home.   If you are interested in acquiring any of these, please email me and make me an offer - no reasonable offer refused.  Collection in person (HD9 area) preferred but I can arrange carriage at cost.  

This page updated 16/12/2016


Crookes type X-ray tube - appears to be in good condition, but I've never used it.
Crookes type X-ray tube Detail of wording on the tube

Electrically Maintained Tuning Fork - two models available.  I have used these, and they did work - but modern electronic devices are much more useful now!
Electrically maintained tuning forks

Galvanometer - needs some renovation work
.   Galvanometer

Wattmeter - made by Crompton Parkinson. I assume this still works, but I've never used it.
Crompton Wattmeter