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PJL · 20th Dec 2009, 4:02 pm

The cathode bias resisitor is a 1% type and seems to be green-brown-black-brown which is 5K. Which is just as well as I*I*R says it should be a 2W part and I would guess this is a 0.6W.

The wire wrapped around the 330 resistor looks like a dry joint.

20th Dec 2009, 4:02 pm	#60
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Newb Stumped on a Derwent The cathode bias resisitor is a 1% type and seems to be green-brown-black-brown which is 5K. Which is just as well as IIR says it should be a 2W part and I would guess this is a 0.6W. The wire wrapped around the 330 resistor looks like a dry joint.