Posted: Tue Apr 05, 2005 7:18 pm
I have been using a JJ/Tesla 5AR4 that I bought from Angela, in my ST35,
and it seems to work quite well. The rectifier tube drops about 50V, so that should figure into your calculations. In my ST35, I was using the 270HX.
After fitting the tube rectifier, I left the 270HX in place, but jumpered one of the 3.3K resistors. That resulted in a B+ of about 335V, (30V less than stock). The power tubes are biased at 31mA. Hope this helps.
Ashok
and it seems to work quite well. The rectifier tube drops about 50V, so that should figure into your calculations. In my ST35, I was using the 270HX.
After fitting the tube rectifier, I left the 270HX in place, but jumpered one of the 3.3K resistors. That resulted in a B+ of about 335V, (30V less than stock). The power tubes are biased at 31mA. Hope this helps.
Ashok