I do wonder what actually happened with the LH351D IMO.
The first batch from AEDe was under the BBL, and absolute pure white, less green than the current one, and less red than the 219B, making it pretty much perfect.
The second batch was still under the BBL, but looks more green. Perhaps the reason for this is that we all keep comparing it to the 219B, which is known to be extremely rosy.
From what I remembered, the first batch was not under the BBL. It is about the same as the 219C, which is yellowish. Mauka tested it in his Wuben TO46R and had to use minus green sheets to get it just below the BBL but output loss was I think about 17% to 20%.
That’s pretty funny. I think in this situation it’s better to call it a graph of one’s patience. My fondness for one of these lights has not really changed much.
But I don’t have one of the most recent prototypes, so I don’t know if they’re ready for production or if there are still things to fix. From what I’ve heard, there were two, and Neal sent them to Fritz and Cawi. Hopefully they’ll have time to test the prototypes soon, and post the results.