Could anyone help for me Please!
I intended to build st70 amplifier, but I'm living in Hungary in the midle of Europe and it is not so easy...and not so cheap to get the output transformers for the amp. I'd like to make it by myself with my friend. The question is...
The output transformer primer side has 5 pins. The impedance alltogether is 4300Ohm. This understood:-) I understood that the high voltage should be connected to the middle point of the seconder. How should I place the pins of the transformator for the screens of EL34 tubes. What is the rate of windings for the screen voltage pins?
How can I figure it out?
Thanks in advance