benlefebvre
Verified Member

Posts: 29
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Built almost a sort of PCB/P2P hybrid. Brazillian cherry wood chassis, aluminum top plate from Landfall, Audyn True Copper signal caps, one input going through a attenuator, the other bypassing volume control. Added the Hazen mod and the 50w resistor. Also have mA meters to make sure the tubes are good. The amp is a tad bit chunkier then I would consider perfect, and definitely doesn’t have a professional fit and finish, but for a first-time main amp DIY build, not bad. More importantly, it sounds very, very nice with about 50 hours on it. There’s a very slight hum that I am assuming is transformer vibration hum - it doesn’t sound/act like a ground hum -but it is inaudible once the music starts playing.
At one point I had an issue with bad voltages, but it boiled down to fundamentals - I spent some time cleaning up what must have been some bad solder joints and the voltages went into spec. Make sure those joints are clean, folks. ;)
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