05-29-2014, 08:08 PM
Hey forum,
I finished up on the 90 a few days ago (all caps, ecaps, and resistors)but have not aligned. Upon turning it on, a low hum from the system was evident - not from the speaker but from the electronics. The set sounds very clear though and all stations come in. However, the volume is about half of what I expected (based on comparing to the 84)... I think I found a tube though that's bad as the bulb was loose in the base so hopefully that is the cause of the low volume. After listening for several hours, I just heard it start randomly making loud crackling/popping noises like fireworks were going off. It only happens for 3-4 seconds and then the reception is normal again. This happened about every 10 minutes. Any ideas as to what could be going on? A picture is attached as well. Thanks,
BDI
I finished up on the 90 a few days ago (all caps, ecaps, and resistors)but have not aligned. Upon turning it on, a low hum from the system was evident - not from the speaker but from the electronics. The set sounds very clear though and all stations come in. However, the volume is about half of what I expected (based on comparing to the 84)... I think I found a tube though that's bad as the bulb was loose in the base so hopefully that is the cause of the low volume. After listening for several hours, I just heard it start randomly making loud crackling/popping noises like fireworks were going off. It only happens for 3-4 seconds and then the reception is normal again. This happened about every 10 minutes. Any ideas as to what could be going on? A picture is attached as well. Thanks,
BDI
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