This series of photographs taken in March 1962 at Ditton Works, Newmarket Road, Cambridge, illustrates the major stages of introduction of the first model in the Vanguard range, from design to despatch. See how many people you recognise!

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1. Electronic design of the Vanguard PT B10AM	2. Mechanical design	3. General view of Drawing Office at rear of Mobile Lab	4. Parts Listing Department

5. Purchasing & Progress Dept.	6. IBM mainframe computer room	7. Control Room of the internal Pye Transport radio system	8. Pye Telecom Training School

9. Production planning meeting	10. Assembly of production models	11. Electrical Inspection Dept. testing of incoming components	12. Stores pick and issue materials to the production lines

13. Sub-Assembly of transmitter PA and aerial filters	14. Sub-Assembly Dept. assembly of mobile control boxes	15. Test of printed circuit board sub-assemblies	16. Main Assembly Dept. viewed from front right hand end

17. Main Assembly Dept. viewed from front left hand end	18. Mechanical assembly: The first stage on the production line	19. View showing the 5 stages of mechanical assembly	20. A typical production line wiring assembly stage - view 1

21. A typical production line wiring assembly stage - view 2	22. Visual line inspection of each equipment	23. Finished equipment electrical alignment and test - view 1	24. Finished equipment electrical alignment and test - view 2

25. Each equipment is soak-tested for a burn-in period	26. Samples of equipment are subjected to vibration testing	27. Each unit is adjusted to the precise operating frequency	28. Samples of equipment are subjected to final electrical tests

29. Each equipment is subjected to final visual checks	30. Each equipment is air-tested with its own ancillary items	31. Each equipment is packed with its own ancillary items	32. Finally the equipments are loaded on to a van for despatch

	33. Company vans will deliver equipment to the end customers

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