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Okay, got it. It is currently Sep Tue 10, 2024 2:25 pm All times are UTC © 2024 Antique Radio Forums Notifications Philco 48-1200 record player restoration ketron281989 · 10 postsYou have no notifications
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10 posts • Page 1 of 1 ketron281989 Member 1953 Jul Mon 11, 2011 8:04 pmPost by ketron281989 » May Thu 24, 2012 6:18 pm
Hi guys I am starting a restoration project on this Philco 48-1200 record player. I have spent the last few hours cleaning everything, looks like it sat for the last 50 years. There were several variations of this player, I cant recall them though. I did a visual inspection of everything and also a controlled power up with a variac. I know the golden rule to not play such devices until the caps and resistors have been replaced, but I was curious. I have not looked inside the amplification section yet, for that I will have to de-solder quite a few wires that connect the player to the chassis. I have the Sams Photo-fact, detailed enough. There is no description on the Astatic needle that it uses.
My initial test run resulted in everything working as it should, but --there is only sound coming out of the tone arm, no matter how high I turn the volume-- Could the cartridge be bad? I have this trouble on my 1933 RCA Electrola as well. Could any body help me with this diagnostic? Thanks
ketron281989 Member 1953 Jul Mon 11, 2011 8:04 pmPost by ketron281989 » May Thu 24, 2012 7:15 pm
After further examination, I turned on the player and touched my finger to the wires that connect to the cartridge and heard a loud hum. I have now unbolted the astatic cartridge from the tone arm, the needle is quite worn and I am almost sure that this needle is original to the player. The lettering on the top says 8-47 (manufacturing date?) and 373 (model cartridge?)
The bottom reads Shure crystal pickup cartridge 36-2643 P908
Is it possible to rebuild these, can anybody point me in the right direction, I would like to rebuild it my self, if not I will look for a NOS cartridge. Im almost sure that this is the culprid as to why no sound is getting to the speaker.
Thanks for your help
dberman51 Member 5411 Jan Thu 01, 1970 12:00 am Boston, MAPost by dberman51 » May Thu 24, 2012 7:21 pm
Never connect a phono motor to a Variac. Trying to operate it at low voltage will cause it to draw excessive current and can burn it out.
Yes, the cartridge is dead. You can have it rebuilt by West Tech Services, or you may be able to get a more modern replacement from Gary Stork at The Voice of Music.
ketron281989 Member 1953 Jul Mon 11, 2011 8:04 pmPost by ketron281989 » May Thu 24, 2012 7:55 pm
Thanks David. I just turned it to 110 volts instead of a wall socket, but I did not know that, and will know better next time. I have looked up West Tech Services and will consider it. Thanks for your help.
corpblues Member 27 Feb Mon 16, 2015 6:04 amPost by corpblues » Jul Wed 20, 2016 9:47 pm
On a whIm picked up one of these at an estate sale as it was so different. The plug was cut off the end of the cord so I didn't have much hope, but after getting it home and opening it up, it is all there and appears to be in good shape. So I added a plug and it powers up just fine.
The motor spins but not the turntable. What is the likey problem? I can't see under the plater to see how the motor is connected to the plater to spin it. I can't see any obvious way to remove the turntable platter, help please!
Also there does not seem to be any sound being generated from the speaker. I can hear the speaker huming as I turn the volume dial but no sound from the needle. Perhaps something is just clicking as on to engage the amp.
Any help is greatly appreciated.
Squire Member 2074 Mar Mon 24, 2014 4:19 pm Eugene, ORPost by Squire » Jul Thu 21, 2016 2:17 am
corpblues wrote: On a whIm picked up one of these at an estate sale as it was so different. The plug was cut off the end of the cord so I didn't have much hope, but after getting it home and opening it up, it is all there and appears to be in good shape. So I added a plug and it powers up just fine.
The motor spins but not the turntable. What is the likey problem? I can't see under the plater to see how the motor is connected to the plater to spin it. I can't see any obvious way to remove the turntable platter, help please!
Also there does not seem to be any sound being generated from the speaker. I can hear the speaker huming as I turn the volume dial but no sound from the needle. Perhaps something is just clicking as on to engage the amp.
Any help is greatly appreciated.
If it's unrestored it'll need gone through starting with the amp. Then the changer will need to be rebuilt and the cartridge rebuilt or replaced. I'm not familiar with that model so I don't know how the turntable is secured but there may be a clip at the base of the spindle holding it down or it could just be frozen in place by old dried out grease.
