1960s Zenith Model Z8563-09 Chassis 14Z8C50, 25ZT120 Schematics/Information

[videoroot]

Not sure if there's a better place to ask this, so I'm tacking this onto here.

I'm trying to figure out what parts I need for the radio section of my console and I ran into a bizarre issue. If anyone else out there has a similar unit, I'd love to hear from you.

To make a long story short, there's an electrolytic capacitor listed on my radio's schematic/part list that just is not there on my radio. I'll attach a picture of the schematic here. C33 is the problem child. There should be a 5 uF 12V capacitor connecting pin 4 of the 3rd AM IF transformer (T7) to pin 6 through a 15 K resistor and a diode.

I'm 99.9% certain that I'm looking at the right part of the board and schematic. However, It's just not there. I'll try attaching a couple pics to show what I'm looking at. It's almost impossible to get a good photo of this spot right here, so I'll add some text to help everyone see. Pic 1. Pic 2.

The original owner was apparently still using this set as recently as 2018, so presumably this all works. That being said, I believe this is mostly original.

Prior to purchasing this set, I only ever powered the radio up to static. I think it's got a few non-electrolytic capacitors that need replacing before I can really feel comfortable powering it on again and testing it further. If the radio works fine without it though, I'm willing to just let sleeping dogs lie. I suppose something like this isn't impossible. Just couldn't believe my luck haha.

Gonna tack one more question here too while I'm at it: "100 + 100 uF" capacitors -- are those in series or parallel?

The parts list calls it "2 x 100 uF", the part itself reads "100 + 100 uF", and the schematic kinda makes it appear to be in parallel. In theory though, replacing it with a 200 uF capacitor should work fine regardless of the configuration (200 uF required if in parallel, 50 uF if in series, I believe). Just curious more than anything.

Thanks in advance!