I'm recapping my Zenith 6G501, and when I popped the paper cover off C10,11,12, I discovered that the C11 section, marked as 40mfd@150V on the paper cover, was rate at 20V on the aluminum can! No wonder all the goop oozed out of only THAT section.

Has anyone else seen this?

Hi Jon

C11 is connected between screen of your 3Q5, along with other tubes and ground. There is 80 volts across this cap.

Maybe the 20 volts rating is mismarked? A 20 volt cap should have shorted out years ago.

Norm

:I'm recapping my Zenith 6G501, and when I popped the paper cover off C10,11,12, I discovered that the C11 section, marked as 40mfd@150V on the paper cover, was rate at 20V on the aluminum can! No wonder all the goop oozed out of only THAT section.
:
:Has anyone else seen this?

Hi Norm,

It sure did, long long ago. It may explain why there isn't the usual wear and tear. It died young and sat in a closet for ages. I just thought it was interesting to find the different volage rating on the can compared to the paper cover, and it being the only bad cap in the set!

Thanks,

Jon

:Hi Jon
:
: C11 is connected between screen of your 3Q5, along with other tubes and ground. There is 80 volts across this cap.
:
: Maybe the 20 volts rating is mismarked? A 20 volt cap should have shorted out years ago.
:
:Norm
:
::I'm recapping my Zenith 6G501, and when I popped the paper cover off C10,11,12, I discovered that the C11 section, marked as 40mfd@150V on the paper cover, was rate at 20V on the aluminum can! No wonder all the goop oozed out of only THAT section.
::
::Has anyone else seen this?