I once blew a Takatsuki 300B and then realized that one of the grid bias resistors had a loose connection. When the amp was moved, the bias got disconnected and the anode current surged, blowing the tube. A painful lesson.
I replaced the Tak with the new WE300B. The WE are definitely much quieter, since my amps drive my 112dB sensitive midrange horns directly. In fact, the noise voltage does not get below about 3mV using the hum dinger with the Tak, but can get to unmeasurable level with the WE. The bias is also much more stable and I hardly ever need to adjust the bias current. This shows the quality of the construction.
Ok, let's see if they honor mine. I have a pair, one on each monoblock and one of them has stopped working. There is no distributor in Turkey and I bought it at the end of Munich fair in 2022
Ok, let's see if they honor mine. I have a pair, one on each monoblock and one of them has stopped working. There is no distributor in Turkey and I bought it at the end of Munich fair in 2022