here now the voltages on the small transformer
new vs. old with inter-turn short circuit fault - both include connected load resp. connected rectifier diodes
15V7AC/14VAC (for heater voltage)
268VAC/190VAC (for anode voltage)
19V6DC/18V2DC (for heater voltage at elcap behind rectifier)
345VDC/244VDC (for anode voltage at elcap behind rectifier)
The DC resistances are follow for the anode voltage (secondary) winding
730Ω/564Ω
The new transformer provide follow voltages without load (without connected rectifier diodes):
16V3AC for heater and 280VAC for anode voltage
Thus an inter-turn short circuit fault on the anode voltage winding at the old transformer is definitely present.
new vs. old with inter-turn short circuit fault - both include connected load resp. connected rectifier diodes
15V7AC/14VAC (for heater voltage)
268VAC/190VAC (for anode voltage)
19V6DC/18V2DC (for heater voltage at elcap behind rectifier)
345VDC/244VDC (for anode voltage at elcap behind rectifier)
The DC resistances are follow for the anode voltage (secondary) winding
730Ω/564Ω
The new transformer provide follow voltages without load (without connected rectifier diodes):
16V3AC for heater and 280VAC for anode voltage
Thus an inter-turn short circuit fault on the anode voltage winding at the old transformer is definitely present.
