08-15-2013, 09:34 AM
Just got my 2nd radio, a Philco 39-7 in very good physical condition.
The only things I see wrong with it at the moment are the scratchy volume control and the tuner needle is slightly misshapen.
The needle itself is not perfectly straight, but from where the post is in the center, one "leg" of the needle is straight, the other bows inward slightly. Since the shaft itself is also not perfectly straight, one side of the needle will contact the paper on the dial depending on the tuner position, which is not really desired.
What would be the best way to straighten the shaft and tuner needle? I could simply try to re-bend it, but I do not want to do anything to risk breaking the tuner needle.
Additionally, the person who partially restored it before I got ahold of it (it was in working condition) seems to have only recapped the power supply portion. There are still wax-covered paper caps in the radio.
even more - I was planning on using my 39-6 as a template along with the schematic. Somehow these two radios are more different than I was lead to believe by the schematic. Mainly, there are the presence of the following: ANT and OSC Transformer. There's also a disconnected wire (black) leading from the I.F. Trans. that is dangling from the underside. I have no idea where it should go, since it looks like it was connected to Oscillator transformer by the position and length of the wire.
For the switch/volume - is there a simple modern replacement for this?
I disassembled and cleaned it with contact cleaner, but it looks like someone was in there already based upon how the tabs looked and I no longer trust it.
The only things I see wrong with it at the moment are the scratchy volume control and the tuner needle is slightly misshapen.
The needle itself is not perfectly straight, but from where the post is in the center, one "leg" of the needle is straight, the other bows inward slightly. Since the shaft itself is also not perfectly straight, one side of the needle will contact the paper on the dial depending on the tuner position, which is not really desired.
What would be the best way to straighten the shaft and tuner needle? I could simply try to re-bend it, but I do not want to do anything to risk breaking the tuner needle.
Additionally, the person who partially restored it before I got ahold of it (it was in working condition) seems to have only recapped the power supply portion. There are still wax-covered paper caps in the radio.
even more - I was planning on using my 39-6 as a template along with the schematic. Somehow these two radios are more different than I was lead to believe by the schematic. Mainly, there are the presence of the following: ANT and OSC Transformer. There's also a disconnected wire (black) leading from the I.F. Trans. that is dangling from the underside. I have no idea where it should go, since it looks like it was connected to Oscillator transformer by the position and length of the wire.
For the switch/volume - is there a simple modern replacement for this?
I disassembled and cleaned it with contact cleaner, but it looks like someone was in there already based upon how the tabs looked and I no longer trust it.
