Re the Tottenham Court Road, as many will know, Henry’s sold suitable parts, such as the tuning capacitors. The folks behind the tills looked about 80. They were also reportedly rather anti-pirate, often claiming to be ‘right out’ of them. In desperation I asked my mum who worked in purchasing in the aviation industry to get details/prices from one of her suppliers. They cost a fortune and my transmitter absolutely drank batteries for some reason.