The following businesses are able to supply useful items in the UK. If you know of any others please send me an E-mail, with components in the subject line.
J. Birkett supply surplus electronic components, including high voltage capacitors, e.g. 1000pF 10kV wkg ceramics, oil-filled 8µF 2.5kV & 200µF 3kV wkg: J. Birkett, 25 The Strait, Lincoln, LN2 1JF. Phone 01522 520767
Service Trading stock a number of items of interest, including Variacs of various ratings up to 5kVA, mains isolation transformers and a solid-state EHT unit that takes mains i/p and gives approx 15kV out. Service Trading Co. 57 Bridgman Rd. Chiswick, London W4 5BB. Phone 0181 995 1560.
Maplin Electronics have shops throughout the UK you can also buy by mail order or via their website. http://www.maplin.co.uk/
Colomor (Electronics) Ltd stock over 6000 different types of thermionic valves (tubes) including a good number of high power types suitable for Tesla coils. They also stock a wide range of other useful components and test instruments. http://www.colomor.demon.co.uk
Rapid Electronics Ltd supply a very good range of electronic components by mail order. http://www.rapidelectronics.co.uk
ESR Electronic Components stock a good range of electronic components, including some quite obscure linear ICs. http://www.users.zetnet.co.uk/esr
Bull Electrical are a large supplier of surplus electrical, electronic and other stuff, from Chieftan tank lasers down. http://www.bullnet.co.uk
