12-12-2016, 08:26 PM
Welcome to the Phorum!
You are right to not plug it in and turn it on. You could easily cause damage. This being your first restoration, I'm going to point you in a few directions and ask you a few questions. Others will surely add to the conversation as well. Here's some info in your model from Ron's gallery: http://www.philcoradio.com/gallery/1937a.htm#au
First question, how familiar are you with electricity, ohms law, resistors, capacitors etc.?
Second, do you have a voltmeter/ohm meter and do you know how to use it?
Familiarize yourself with the information in this Phorum, particularly the Tech Section which will have some advice, some specific to a particularly item others more general. There is a how to do things on the Phorum section which includes how to post pictures.
Read this information for beginners by Phil Nelson: http://www.antiqueradio.org/begin.htm
A schematic can be found for the radio portion at this LINK. You will need the DjVu reader available on this PAGE. A somewhat less readable version is available at Nostalgiaair.
You will need to replace all the paper and electrolytic capacitors and probably some of the resistors if they are out of spec. To get an idea of a similar restoration currently being done on a 37-640 you can read through this THREAD. The 640 and 650 are not identical but the restoration issues and techniques will be similar.
I have not worked on a phonograph but there are people here who have.
Go slow, read, and ask questions here. There's more I could give you but that's a start for now.
You are right to not plug it in and turn it on. You could easily cause damage. This being your first restoration, I'm going to point you in a few directions and ask you a few questions. Others will surely add to the conversation as well. Here's some info in your model from Ron's gallery: http://www.philcoradio.com/gallery/1937a.htm#au
First question, how familiar are you with electricity, ohms law, resistors, capacitors etc.?
Second, do you have a voltmeter/ohm meter and do you know how to use it?
Familiarize yourself with the information in this Phorum, particularly the Tech Section which will have some advice, some specific to a particularly item others more general. There is a how to do things on the Phorum section which includes how to post pictures.
Read this information for beginners by Phil Nelson: http://www.antiqueradio.org/begin.htm
A schematic can be found for the radio portion at this LINK. You will need the DjVu reader available on this PAGE. A somewhat less readable version is available at Nostalgiaair.
You will need to replace all the paper and electrolytic capacitors and probably some of the resistors if they are out of spec. To get an idea of a similar restoration currently being done on a 37-640 you can read through this THREAD. The 640 and 650 are not identical but the restoration issues and techniques will be similar.
I have not worked on a phonograph but there are people here who have.
Go slow, read, and ask questions here. There's more I could give you but that's a start for now.
