Reply To: Need Help replacing a Bias Cell for Marconi Model 158

[Jerry Tombari]

Thanks Dan.
I also have a problem tracing a signal from the PD of the 6Q7 Tube. The following stages work well put the signal gets lost at pin 4 and 5. I can’t figure why. All the voltages are dead on. I must be doing something wrong, any suggestions. The model is a Marconi 158. I would really like to understand what I am doing wrong. All of the wires needed to be replaced including the power transformer and both IF’s
Thanks again