Saba 300 Automatic-Stereo/11 issues

[vortalexfan]

Greetings everyone, I'm working on a Saba 300 Automatic-Stereo/11 Radio for someone who was complaining that the audio was having some trouble, and I need a tube location chart for this radio because its tube location chart is missing and I found a service manual for it on HiFi Engine (albeit in German) and it doesn't show a tube location chart and when I opened this radio up I noticed a tube was missing (a 7-pin miniature tube) and I have no idea which tube is supposed to go there in that empty tube socket without the tube placement chart.

Any help with this would be appreciated.