usna2008
Responses from usna2008
| Marantz 10b hum Thank you for your response. The hum is heard through the speakers. It sounds like a 60 cycle hum.I will try reversing the power plug. I suppose it is not polarized. | |
| Marantz 10b hum I have now replaced every tube with a NOS tube and the hum persists. I then replaced the three 10uf and one 20uf electrolytic capacitors in the power supply. Still hums, but the sensitivity is excellent. Any other ideas? Thank you for any asistanc... |