01-15-2019, 08:19 AM
Hello friends!!! Happy new year!!!
Back in action after a long time...
After replacing 7B7 tube, noise heard but not music So i started checking DC values... results was not good, but restored. Still no reception... "digging" continued and found something interesting...
[attachment=18262]
This is an accurate schematic i've found (an old Ron Ramirez's reply) although it is for a different model. The tubes are different but the components values and positions are the same. But...
[attachment=18263]
...Z1 transformer seem to have (at the schematic) 5 active pins (1, 3, 4, 5 & 6) although at the radio are only 4 (1, 3, 4 & 6). So pin #4 of 7B7 tube seem to have ...nowhere to connect. Furthermore, this tiny, white component with the red line in the middle, i have no idea what might be...
Thank you in advance!!!
Back in action after a long time...
After replacing 7B7 tube, noise heard but not music So i started checking DC values... results was not good, but restored. Still no reception... "digging" continued and found something interesting...
[attachment=18262]
This is an accurate schematic i've found (an old Ron Ramirez's reply) although it is for a different model. The tubes are different but the components values and positions are the same. But...
[attachment=18263]
...Z1 transformer seem to have (at the schematic) 5 active pins (1, 3, 4, 5 & 6) although at the radio are only 4 (1, 3, 4 & 6). So pin #4 of 7B7 tube seem to have ...nowhere to connect. Furthermore, this tiny, white component with the red line in the middle, i have no idea what might be...
Thank you in advance!!!