Field measurements of receiver improvement following FET swap What is new in Version 13 PROMOTIONAL BROCHURE SERVICE MANUAL SERIAL NUMBERS. W4FID HF Radios. Kenwood. I have a NIB MB13 which is the easy loadunload locking mounting bracket for the TS50 or AT50. How to find the manufacture date of Kenwood HF  Personally, I dont know, but if you jump over to Yahoo there is at least 1 TS 5. If you request to join it you will gain access to a lot of really fine input from other 5. Im sure that someone there will know the answer. Its my understanding  that there is a Kenwood site that provides that information if you plug in your serial number. I really dont have an interest in knowing that, so I never pursued it. Good luck and I hope this helps you. Qual O Programa Abre Arquivo Rar. Kenwood Ts 940S Serial Numbers' title='Kenwood Ts 940S Serial Numbers' />Charlie.