10-15-2007, 10:36 PM
I just finished recapping a 40-150. I replaced all the caps except 3 micas, almost all the resistors, and almost all the rubber-covered wire. There were a few wires that still had very rubbery insulation, and by coincidence those wires were exceptionally hard to get to, so I put left them as is.
I have not done any alignment. The radio fired up and plays fairly well. The problem is that when tuning, there is a loud whistle when you approach any station from either side. As you get closer to the station, the pitch drops until it goes away altogether when the station is perfectly tuned. This happens with all stations across the dial, weak or strong.
Does anyone know what causes this?
I have not done any alignment. The radio fired up and plays fairly well. The problem is that when tuning, there is a loud whistle when you approach any station from either side. As you get closer to the station, the pitch drops until it goes away altogether when the station is perfectly tuned. This happens with all stations across the dial, weak or strong.
Does anyone know what causes this?
John Honeycutt
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