I thought you guys on here may like to see the set I have just finished restoring, it is a KB NR40T.
Being an export model I think they are pretty rare, I have only ever seen one other and that is Paul K's. There are no British stations marked anywhere, other than "London", and that is only marked on the SW bands, MW is all foreign stations.
I think this model was a case of "my one is bigger and has more wave bands than yours". There is a lot of unnecessary space inside the cabinet, made to look bigger with the curved sides.
All the bands are very lively at night, except the 13 & 11m bands, they are rather quiet, but are picking up static noises.
This one originated from North Norfolk on the coast, so it was possibly used by someone to listen to the Trawler band.
This radio dates from 1957, I would think this was one of the last large woodies that KB produced, other than radiograms.
I cant believe nobody else bid on it.
All the brown hunts and the couple of wax caps were changed and the electrolytics reformed. But during further close inspection of the chassis I found this rather stressed 10k resistor connected across the aerial and earth sockets. Its value was intermittent, ranging from infinity to 2k.
I wonder how this could have happened, there is no sign of leakage on the transformer primary. The solder was removed by me. As suggested on UKVRRR maybe someone thought they would use a "mains" aerial, but without a capacitor.
If so the poor resistor could have been dissipating nearly 6 watts.
It does not look like it was designed for a mains aerial.
I was interested to find that the RF amplifier valve is bypassed for MW.
More photos here; http://www.kbmuseum.org.uk/kb_images/nr40t/nr40t.htm
Mike
Being an export model I think they are pretty rare, I have only ever seen one other and that is Paul K's. There are no British stations marked anywhere, other than "London", and that is only marked on the SW bands, MW is all foreign stations.
I think this model was a case of "my one is bigger and has more wave bands than yours". There is a lot of unnecessary space inside the cabinet, made to look bigger with the curved sides.
All the bands are very lively at night, except the 13 & 11m bands, they are rather quiet, but are picking up static noises.
This one originated from North Norfolk on the coast, so it was possibly used by someone to listen to the Trawler band.
This radio dates from 1957, I would think this was one of the last large woodies that KB produced, other than radiograms.
I cant believe nobody else bid on it.
All the brown hunts and the couple of wax caps were changed and the electrolytics reformed. But during further close inspection of the chassis I found this rather stressed 10k resistor connected across the aerial and earth sockets. Its value was intermittent, ranging from infinity to 2k.
I wonder how this could have happened, there is no sign of leakage on the transformer primary. The solder was removed by me. As suggested on UKVRRR maybe someone thought they would use a "mains" aerial, but without a capacitor.
If so the poor resistor could have been dissipating nearly 6 watts.
It does not look like it was designed for a mains aerial.
I was interested to find that the RF amplifier valve is bypassed for MW.
More photos here; http://www.kbmuseum.org.uk/kb_images/nr40t/nr40t.htm
Mike