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Old 17th Feb 2018, 8:49 am   #16
vosperd
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Join Date: Oct 2007
Location: Bristol, UK.
Posts: 446
Default Re: RA 1772 power supply heat

I notice that the transformer on my replacement RA1772 is noisy but the set doesn't seem to be getting overheated at the moment. I'm still on the lookout for a spare transformer for the old one. I'm considering a rewind or getting one wound at some stage. I guess to make it a simpler job the 80V supply is not needed if I don't use RTTY.
On the working set the fault on the PLL has returned (local oscillator120K/cs low on the odd kc/s bands only) and this time it is on permanently. A couple of replacement boards would be handy but no-one seems to be breaking these sets for spares.
Don m5aky
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