Hi Tony, I won't miss those old rattlers.
A horrid little cab and 50ish year old technology. The power control was via an air-operated camshaft and could be very slow to take up. The brakes were a mixture of poor air & powerful dynamic. The dynamics were like boat anchors but had a habit of 'dropping out' when you needed them the most.
But the retrofitted Aircon was the best I've ever experienced. If you had a toupee (I don't fortunately) it probably would have been blown out the window.
See photo below of the shoe-box sized cab. Taken at Kings Cross before a delightful trip out to Welwyn Garden City & back.