Thread: Dumont RA-103
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  #18  
Old 10-10-2020, 02:46 PM
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Davala Davala is offline
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Join Date: Sep 2014
Location: Longview, WA
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Well I found my big "smoking gun" with my too high B+.. I feel real embarrassed to say but I should have check it earlier. R120, a big 25 watt 6K resistor on the 5V4 damper. Its a damper filter from cathode to plate and its open. I thought I checked it when I first had the HV box open as its very corroded at the terminals. Well I just checked it and its open.. Now to find a replacement.

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Matt Davala
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