When was it that the "X" and "Y" capacitor designations started to be used? I've seen some pretty ancient capacitors with these markings on them over the years. I suppose that this particular case in what we would now call a "Y" requirement failed in the desired manner though. As far as I can make out, the 670/840 series appear to have been derived from the 710/740-series type receivers but with a goodly sprinkling of insulating washers, bushes, strips and couplings to isolate case from chassis- quite impressive as a diligent adaptation of existing hardware for the contemporary requirement of a DC mains-capable cabin receiver, but I wonder if they would get away with it today in a "general sale" context.
Quote:
Originally Posted by G6fylneil
When turned on my 840c for the first time for many years, (after reforming the HT capacitors) I thought it was a bit deaf. But it turned out just to be a lack of transmissions to receive!
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Very true, a sad sign of the times! There's still a few nuggets out there though.