Some of the tubes were missing altogether. So 6A7 (tuner) and 78 ? with top connectors are easy enough but 75 is a misnomer. There might be new capacitors inside too so the extra overflow bulb might not be needed. I have the schematic and I will refurbish this with a new polarized plug so the chasis isn't a shock hazard. Fun project but I do need help from anyone who is willing to share tips.