Zenith J880R

No, "it worked" meaning the schematic posted. Am ordering parts today.

So is the radio running now?

It worked.
R12 is 1 Megaohm.

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My first attempt at inserting a schematic, hope this helps.
Heres the location of that resistor. (Yellow Highlite)
So look at the value. That should be it.
you need  to measure the white component to find out if it a cap or resistor and then replace it.
So What are you going to do?

Thanks. 
I have been studying the schematic and parts list.
The original pic I attached is on top of the chassis, left rear corner (viewed from the front) next to T1A and T1B.
Looking at the parts list, I see the resistor values run from 39 ohm to 10 Megaohm.

Click on this link for a 4 page schematic and parts list.
This should be the first priority. In order to be on the same page.
Also setup a convention of the chassis picture top end the left side and right side then bottom. Then make a grid system of 4 to 8 sections and write those along the edges like a map grid.
Number and letter (Numbers across the top of the schematic and letters on the side)

Read the list and look at the approximate location of the part on the provided list. On a separate piece of paper do the same in this order Group like parts (All capacitors & the Value of each along with the Part ID such as C-1, C12 etc.) Then on the list mark along side of each part the Grid location.
You also need to trace the wire connections from part to part or what parts have a common wired connection.
Then mark on the actual schematic each wire trace you have identified. Use colored highlighter pens or pencils.
Can you download the provided link?
Here is the Link Below that you should download and save AS a PDF file to your desktop for easy retrieval.: I have done the same on my computer for reference.

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Relating to the picture you submitted Where is the photo location from on the chassis. there is a parts identification on the picture of the chassis included in the schematic. (PS I did find All 3 1Megohm resistors in the schematic) MY PDF copy isn't as clear as the one on the web.
You cannot change the resistors willy-nilly or you could make things worse. Stick with the printed values.

Understood.  
From the responses I've received and my own reading of the schematics I still have not determined the correct replacement. 
It is in the antenna circuit so is not high voltage. (right?)  
I do not have the parts list in front of me to see all resistor values used in this set. 
just wondering,If lowest to highest values are not that far apart, will the highest value cause negative consequences?

An an exact replacement would be preferable of course, but within the tolerance, if you have a resistor that falls within the tolerance range (when measured) would also be acceptable. This has to do with design for signal strength to audio gain to prevent overload of any of the stages in the line.
Wattage has to be considered if its connected to high voltage.

Would it be acceptable to install the highest value resistor, listed on the parts list, in the antenna circuit without adverse effects?
Thanks

Yes. I have also noticed that some wire wound resistors like that (Sand Ohm, Cement, etc.) age with corroded copper or copper clad  leads.
73, Roderick  WB6FBF

R12 is 1Mohm 1/2watt  20% but as a 4 bander its

1 MΩ ±0.05% (3 used?) I can only find one in the schematic.

It is located on the schematic below second IF Tube 12BA6 as a group connection

c5 is .05Mfd. 200v (2 used)
c8 is 110Mmfd. Ceramic 500v (3 used)
R10 47Kohms 1/2w 20%

the rest are very hard to read on the schematic and some designations don't match the parts list.
The corroded leads could be acid core solder.

The white component is a resistor. For some reason, that style often ended up with corroded leads.
 I have even had NOS ones leads corrode that way. Likely some sort of mfg. screw up, or impure or contaminated copper.

Brown black green silver.  1000k ohms 10% res
Thanks
Nomo

It looks like its part of the antenna circuit. The white component looks like its a capacitor. What is the value of the resistor in the back of the picture?
Do you have a schematic? If not its in Riders Vol. 23-PDF page counter 1111 or looking at riders paging system its 23-19.
You might find a clearer photo of the schematic if you have the actual Riders book.  Sometime looking at similar Models may help.

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Just starting on a Zenith Cobramatic console. While trying to read a cap, another component broke off. The leads are copper and quite brittle and corroded. The piece has no markings and I am still learning schematics. Hoping someone can ID the piece.
Chassis # 52551. Pic is top left rear of the chassis. Can take more pics if needed.
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Thanks
Nomo