rock soderstrom
Tour de France
Hi guys, I am currently working on a cardioid only DIY ELA M251 with a 6S6B tube. I'm thinking about the correct biasing of the tube, I'm orienting myself on the AC701 version, I currently have a B+ of 120V, Ra=200k and a cathode resistor of 3.6K (it's actually a 5k pot).
I would be interested in the voltages in the original ELA M251 with AC701 tube. Is the B+ really 120V? (I can't read it in the attached schematic)
What is the voltage drop across the cathode resistor, what is the voltage potential at the anode?
The total current in the microphone appears to be 1.1mA according to the schematic.
I searched for it on google, but found nothing. Can anyone help?
I would be interested in the voltages in the original ELA M251 with AC701 tube. Is the B+ really 120V? (I can't read it in the attached schematic)
What is the voltage drop across the cathode resistor, what is the voltage potential at the anode?
The total current in the microphone appears to be 1.1mA according to the schematic.
I searched for it on google, but found nothing. Can anyone help?
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