13-09-2016, 08:25 PM
There's no way a 6T5 (or any small B7G valve) would need 2A of heater current. Unless something funny is happening the 6T5 has a 6.3V, 300mA heater so I suppose the 2 heaters are wired in series.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv







