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vosperd · 18th Mar 2021, 6:08 pm

The rectifier is probably for the 28V dc supply which is not required for the R1155.
It looks like the psu was a ground supply for the Spitfire radio, mentioned in your initial post, which would have been to hand.
One thing to remember is that the HT negative is not grounded in the power supply. As this psu has been used in the past with your 1155 it should be fine as long as there are no faults.
Don m5aky

18th Mar 2021, 6:08 pm	#13
vosperd Hexode Join Date: Oct 2007 Location: Bristol, UK. Posts: 446	Re: R1155 power supply unit The rectifier is probably for the 28V dc supply which is not required for the R1155. It looks like the psu was a ground supply for the Spitfire radio, mentioned in your initial post, which would have been to hand. One thing to remember is that the HT negative is not grounded in the power supply. As this psu has been used in the past with your 1155 it should be fine as long as there are no faults. Don m5aky Last edited by vosperd; 18th Mar 2021 at 6:14 pm.