Hey guys. I'm trying to build a headphone amp using the Aikido topology. In reviewing the schematic I'm not understanding heater power or heater connections. I learn better visually so I redrew the schematic showing all the pins for each tube.
So you can see that the B+ is 24v and comes in to some symbols which I'm assuming are the heater connections. I've circled them in red. Are these the heater connections? If so, which pins do I use for connecting, pin 4 or pin 5?
Also, in reviewing the heater requirements for the 6GM8 we need 6.3 volts. But the incoming B+ is 24v. How are we getting 6.3 out of this to the heaters?