Valves wanted.

I am always on the lookout for all sorts of valves to enhance the collection/museum. Of particular interest are:

• CV and British military (Ax, Nx, Vx) marked valves not already in the collection
• WWII cavity magnetrons - I am particularly interested in earlier types e.g. CV38, CV41, CV108, NT98 - but also want to add any not already in the collection
• Engineering sample and production sample etc. valves
• Sources of information on the valves in the collection or on the equipment that used them
• Anything unusual!

Other than the general statement above, the following is a list of wants gleaned basically by reviewing documentation - NB it is not a 'total' list of what I want (see above!), and the list changes from time to time so please check back later.

If you have anything for sale/disposal/trade, let me know. Donations always welcome!