I have been visiting Henry electronics for over 30 years now and have always found it to have everything I wanted, from the thermionic valves to security systems. The leaflet flyers at the front of the shop are full of interesting items at best prices.
Over the years, Henrys have changed except for one member of staff. There is a feel of bargain hunting and odd, single and obscure items can be picked up. Recently, I picked up a single door entry phone unit to replace a broken one in a block of flats. I could not get one immediately from anywhere else. Henrys has lasted the test of time is now the only electronic store on the Edgware road.
Henry's Audio Electronics Centre sell Hi Fi equipment, including speakers, as well as televisions, video players and computers.