another heater circuit that uses 47 ohm 1/2 watt resistors to create a virtual center tap,

normal value here is 100 ohms each, so this is a little stiffer of a CT,

dissipation is 6.5/47*2=69.15 ma * 6.5=0.45 watts/2=0.225 watts in each of the 47 ohm resistors or about 1/4 watt out of a 1/2 watt which is ok, possibly, we would probably go with 1 resistors over here,