30-10-2015, 04:52 PM
If it were me I would just rig up the valve base as shown in the picture having first established which heater connection is the HT +ve out.
Use a 4 ohm 7 or 10 watt resistor in place of the 100 ohm resistor shown in the picture, that will simulate the heater current draw of the U10 rectifier valve that Nick says he has, once it can be established that there are no HT shorts etc or no serious heater winding/connection leakage to HT-ve in the PSU then he can then try the U10 rectifier.
Lawrence.
Use a 4 ohm 7 or 10 watt resistor in place of the 100 ohm resistor shown in the picture, that will simulate the heater current draw of the U10 rectifier valve that Nick says he has, once it can be established that there are no HT shorts etc or no serious heater winding/connection leakage to HT-ve in the PSU then he can then try the U10 rectifier.
Lawrence.
