Triad N68-X at 50VA laughs at your 20VA heater draw + <10VA B+. The shunt's ~0.9W extra is peanuts—your PT won't break a sweat. Proceed; open pins are the real killer for tube life.
Triad N68-X at 50VA laughs at your 20VA heater draw + <10VA B+. The shunt's ~0.9W extra is peanuts—your PT won't break a sweat. Proceed; open pins are the real killer for tube life.