This is a stock item. Currently our first stock order is coming from EML. Will be fulfilled as soon as stock arrives in about two weeks.
The EML PX4 mesh tube is equivalent to the 15 Watt Version of the historic PX4 by OSRAM and MARCONI, apart from the heater current. The EML PX4 has higher heater current. Since the historical data sheet gives no numerical value for Gm and Rp under normal bias conditions, the values for Gm and Rp were extracted from the historical tube curves.
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