kolsterbr: FB10; Midget
kolsterbr: FB10; Midget
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Toaster.
did they also use B7G valves but with a 6V6GT at one stage?
Sure I remember seeing one.
I always compare these small sets with the Bush DAC90A,
and I'm sure none work as well - what do you think?
Regards,
John Turrill.
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Kolster Brandes FB10
There is no doubt that the Bush DAC90 is a much better performer. It has a larger case and speaker, of course, and Bush did not seem to have the same problems as KB with regards to sourcing components around 1950.
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Kolster-Brandes FB10 'Toaster'
Hello,
I recently acquired and overhauled one of these KB FB10 midget radios and have seen a KB service data supplement sheet dated January 1954 covering sets with serial number 60,001 onwards. The circuit diagram which accompanied this update has a 6BW6 output valve rather than a 6V6GT. The frame aerial was also replaced by a ferrite rod aerial and a minor change was made to correct modulation hum by removal of the 0.1uF capacitor across the mains input and introducing a 0.05uF capacitor between rectifier anode and chassis.
Other changes may well have been made from time to time, these sets do tend to vary a bit !
The FB10 was replaced by the FB10/2 model in June 1955, serial number 110,001 onwards with several more changes and that has a separate model page on RMOrg.
Regards .......... Howard
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