Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

Philco 46-1203 Phono Cartridge
#1

Hi: Newbie question, staring a restoration of a 46 1203, working on the turntable. No sound from the record cartridge, will be replacing the cap. a .03 mfd. But how and what else can I check to find the problem. Details on diagnosing the problem are greatly appreciated.

God Bless,

Dave

(subject edited by site admin to eliminate confusion between this and another posting)
#2

Hi Dave,
I'm brand new here so not familiar yet with the various old radios.

Having serviced electronics since the 60's though, I'm assuming you
have a bad "cartridge" or "pickup" in the tonearm of the turntable.

You can find out if the input to the radio/amplifier is good by subbing
in the output of a cd player or some other audio source. Use the earphone output jack and connect to the input of your unit you are trying to restore.
It may work but the volume could be about right or too high (sounds distorted then) If it is still very low or not there at all, you may have a problem with the preamp stage (tube) of the radio/amplifier input.. or.. both that and a bad cartridge.

Depending on the age of this unit, it may use a crystal cartridge (just a guess) which have a faily high level output compared to the ceramic of later years and the "dynamic" used in recent years higher end products which is a very weak output needing additional boost - that's getting off the point, sorry.
I think there are a few sources for some of these old cartridges but all depends on what you may need. I'm not very familiar again with what is used in these old timers or what can be still be found. Have to search the various web sources of the antigue radio supplies/parts.

Best regards,
Harlan
#3

THanks for the infor, I give it a try.
#4

Without looking this model up, I believe it uses a crystal pickup; these usually go bad, resulting in no response.

West-Tech Services can make your old crystal cartridge like new again.
http://www.west-techservices.com/

--
Ron Ramirez
Ferdinand IN
#5

Thanks Ron, I apprecaite it.

God Bless,

Dave B




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need Help to ID this radio 11 tube Philco
It is a 16B tombstone.morzh — 06:13 PM
Zenith H725
David - sorry, I reread your post and finally saw THD - now the % figures make sense. Thanks for explaining. The PSU...EdHolland — 06:06 PM
Need Help to ID this radio 11 tube Philco
Hi Everyone, New member but have been reading this for awhile for tips! Vaccum tubes were before my time so bear with ...Ken D. — 06:03 PM
My Philco 37-116 Restore
Thank you MrFixR55, I appreciate your comments very much. I do not detect much hum if any so I will be staying with the ...dconant — 05:15 PM
My Philco 37-116 Restore
Hi DConant Yes, you can replace chokes with resistors.  You do stand the risk of increased hum.  the solution is to inc...MrFixr55 — 04:23 PM
Zenith H725
1.7-3.9 %, a modified Sine wave inverter is around 25%. Most generators from big box stores run 10% at a 50% load. What ...David — 04:06 PM
My Philco 37-116 Restore
I am having a heck of a time doing the alignment on the AM band. I can't seem to dial in the 1500 KC oscillator. I can h...dconant — 03:35 PM
Zenith H725
David - I think I understand but what units are you discussing (Low of 1.7, high of 3.9)? Budget constraints for Ham ...EdHolland — 01:43 PM
My Philco 37-116 Restore
You're doing great. I wish I could be more involved, but my mind is right now preoccupied with the reason I am here in ...morzh — 12:21 PM
My Philco 37-116 Restore
Hope you guys are still with me. I have moved on to the alignment. I completed the IF alignment which was pretty muc...dconant — 10:47 AM

[-]
Who's Online
There are currently no members online.

>