09-11-2022, 08:30 AM
Great question JTiner! I saw the same in the Philco 89 from H&!! that I recently fixed. I supposed that the Bakelite Cap Block used in the 89 served as an easy terminal for the power cord instead of running it up to the switch.
Capacitors conduct AC so there is always some drain (and heat dissipation, which is why one needs to always use "safety" caps for that purpose.
However, I had a 40 year career in BioMedical Field and Phone Customer support and there are commercial filter / input modules that als0 put the filter before the power switch. I think that this is done in TVs also. These EMI Filters last decades without failure. It has been about 45 years since Physics II in College, so I can't tell how many watts a 0.05uF cap draws across a 230V 60Hz Line, but U would doubt that it is much
Capacitors conduct AC so there is always some drain (and heat dissipation, which is why one needs to always use "safety" caps for that purpose.
However, I had a 40 year career in BioMedical Field and Phone Customer support and there are commercial filter / input modules that als0 put the filter before the power switch. I think that this is done in TVs also. These EMI Filters last decades without failure. It has been about 45 years since Physics II in College, so I can't tell how many watts a 0.05uF cap draws across a 230V 60Hz Line, but U would doubt that it is much
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
Best Regards,
MrFixr55
