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jim_beacon · 6th Dec 2005, 10:34 am

So it looks like there may be 8 chassis variations of the FB10, before we start to consider other sets in the same case (FB10FM, FB15 etc), and a production run in excess of 120,000 units! (plus the other models).

I suspect that it is more a case of inteligent design than anything else - when the set was introduced (1950), the new B9A valves were just starting to appear, so to design the set to take either would keep your options open, and also allow the set to be easily adapted for other markets. If it was just component shortages, all manufacturers sets would be like this in the late 40s / early 50s.

Pauls service CD's give two versions of the set, and start that the all minature valve version started at sn 110001, so the strange hybrids are probably earlier production.

Jim.

6th Dec 2005, 10:34 am	#16
jim_beacon Retired Dormant Member Join Date: Mar 2003 Location: Bishop's Waltham, Hants, UK. Posts: 939	Re: KB FB10 'Toaster' So it looks like there may be 8 chassis variations of the FB10, before we start to consider other sets in the same case (FB10FM, FB15 etc), and a production run in excess of 120,000 units! (plus the other models). I suspect that it is more a case of inteligent design than anything else - when the set was introduced (1950), the new B9A valves were just starting to appear, so to design the set to take either would keep your options open, and also allow the set to be easily adapted for other markets. If it was just component shortages, all manufacturers sets would be like this in the late 40s / early 50s. Pauls service CD's give two versions of the set, and start that the all minature valve version started at sn 110001, so the strange hybrids are probably earlier production. Jim.