Another shipment of ER300Bs came in today. All tubes have been retested for matching plate curves and op points. The tubes will be shipped with a measurement protocol of the plate current at a specific operating point.
Almost all remaining pre orders will be shipped this week. The rest will be shipped before the end of the year from the next batch. Some pairs from the next batch are still available. Place your pre order now to secure your pair. After that batch I will not receive more tubes for at least a month.
In the meantime I am getting feedback from the first users of the tube. One such impression was already posted in the previous update.
Cheah from Malaysia was the very first person who put in an order for the ER300B. He just received his pair and plugged them into an amplifier which was built by himself:
This is his feedback: