Suppliers

In no particular order a list of places that sell stuff that is relevent to our interests:

London retail or trade counter

• RS has most things, more professional. 4 trade counters, including Bow.
• Maplin chain, more hobbyist

= London mail order = (not known whether personal calling is allowed)

• Earthshine

Mail order

• Farnell has everything, more professional
• Cricklewood electronicsA real shop, with little drawers of stuff & everything.
• Rapid mix of stuff
• Cool Components
• skpeng
• tinker.it
• Amazon (next-day with Russ's Amazon Prime account) - equipment is often cheaper
• Bits Box

Classified ads and junk sales

• engineering machinery , materials and small ads
• amateur radio rallies have lots of interesting junk and random components