One power supply to power two different audio circuits

[My3gger]

I'm working on two tube mic/line level circuits, one is single ended, the other has single ended input and class a push pull output. Voltages are close enough, HT current 40-50mA for both, i'm not sure if one can supply both due to interaction even with proper decoupling and separate HT regulator for each circuit. Heater supply is not a problem, p2p layout allows for AC or DC, power tx has taps for both options because one will be used as aux supply for relays and lights (a few eur difference at good local winders).