Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

48-1256 radio / phono
#1

I replaced the cartridge in the photo and the sound is clear but I can't get the (volume) sound high enough. The radio volume control works ok.Is there some way to increase volume other than turning knob?

If the shielded cable is not grounded would that make a difference ?
#2

have someone move this to electrical forum and they will be able to help. I am useless with this topic. Icon_silent

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
#3

Thanks
#4

Lumberman, if the radio volume is fine (loud enough) and the phono is weak, it suggests that perhaps your replacement cartridge is either weak or perhaps of the wrong type. Cartridges have a wide range of output voltages depending upon construction. Selecting the proper voltage output is fairly important.
Can you advise what cartridge you installed?
Refer to the schematic as to where the shield should be tied. That may or may not be a problem. It appears the shield is grounded to the changer base.
http://www.nostalgiaair.org/PagesByModel...013612.pdf
Jerry

A friend in need is a pest!  Bill Slee ca 1970.
#5

There are several types of cartridges some have much higher output than others. I would suspect that you have a cartridge that has a low output or is a low impedance output. What cartridge are you using??
Terry
#6

Jerry and Terry, thank you for your replies. The cartridge I installed is a Astatic 32 it states on the box that it replaces Astatic 34;l-24-a;l-36-a;l-82-v;l-92-a. If this is the wrong type where do you suggest I look for the right one,can you test the cartridge for voltage out put. The cartridge I replaced is a Shure crystal pickup cartridge P907, below that it states 35-2643. Tim
#7

According to the schematic the shield is grounded to the turntable chassis and not at the radio end.
Jerry

A friend in need is a pest!  Bill Slee ca 1970.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A...captainclock1988 — 03:43 PM
Philco 42-390, code 121 speaker
Using a 5W  1.5k  ceramic resistor in place of the field coil and using a 4 ohm PM speaker, I was able to bring the radi...Stevelog — 02:57 PM
Philco 60 Squealing
I have taken out the 2nd IF and found a problem or not. I believe the coils are litz wire. There is a very small strand ...dconant — 02:13 PM
Philco 6K7
I am restoring a Philco 37-60. The am reception is very good, but the shortwave is very weak. Run 6 Philco removes the g...bobbyd1200 — 01:35 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A5...MrFixr55 — 06:48 AM
American Bosch Model 802 auto radio
I think it would come under either American Bosch or United American Bosch. American Bosch made sets for the American We...Arran — 05:53 AM
trying to identify this wire type
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM
trying to identify this wire type
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM
Gilfillan Brothers Car Radio?
Hi everyone,  Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! Gary P.S. Can't get the right color you need? I ...GarySP — 06:40 PM

[-]
Who's Online
There are currently 4080 online users. [Complete List]
» 2 Member(s) | 4078 Guest(s)
AvatarAvatar

>