Hello how are you? I am an electronic technician and I am at your service for what I can help. I got a radius of 60's bulbs made in Mexico, by Radio Impulsora Mexicana, brand " Majestic" same that I want to restore. The model according to the back cover is: " COMETA " and has 5 bulbs: 12BE6,12BA6,12AT6,50L6-GT and 35W4. Checking I found the 50L6-GT bulb fused, that is, there is no continuity in the filament. Later I noticed that legs 4 and 6 of bulb 35W4 were "bridged." Someone short-circuited them thinking that it would fix it, and it is likely that is why the 50L6-GT was cast. The fact is that I find that the values of some resistors are altered, that is, they do not match the colors of the body and some capacitors do not have their value printed or is confusing. I have searched for documentation on this model on the internet without success. Therefore, I request in the most attentive way, if someone has the electrical diagram, be kind enough to share it with your server, in order to get and replace the required parts (including the 50L6-GT bulb, without a doubt) and thus repair the receiver. I enclose photos of the radio and the pieces where I have doubts. Thank you in advance and best regards!!