11-05-2014, 05:09 PM
Hello, everyone.
My name is Dave and I am new to this forum and vintage radio restoration. I recently picked up a 37-604 and recapped it and replaced the resistors. However, when I powered it up I only got a slightly audible hum from the speaker. I touched the middle tab on the volume control with a screw driver and got a little louder hum. The BC resistor, which is rated at 133 ohms and 15 ohms, got incredibly hot just after a few seconds. I replaced it with a 20 ohm and 180 ohm power resistor on a terminal strip and that, too, got incredibly hot very quickly. I poked around but did not see any broken or otherwise bad wires and that's were my lack of knowledge and experience left me stumped.
Does anyone have any advice they can share with this newbie?
My name is Dave and I am new to this forum and vintage radio restoration. I recently picked up a 37-604 and recapped it and replaced the resistors. However, when I powered it up I only got a slightly audible hum from the speaker. I touched the middle tab on the volume control with a screw driver and got a little louder hum. The BC resistor, which is rated at 133 ohms and 15 ohms, got incredibly hot just after a few seconds. I replaced it with a 20 ohm and 180 ohm power resistor on a terminal strip and that, too, got incredibly hot very quickly. I poked around but did not see any broken or otherwise bad wires and that's were my lack of knowledge and experience left me stumped.
Does anyone have any advice they can share with this newbie?
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