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

37-630 Aux Audio
#1

Hi:  I'm installing an  aux, audio connector to my  37-630 and I 'm running into an issue.    Using the attached photos as a guide  I  cut the connection to the top of the volume pot between it and cap #40 and  and  made the connections the same way I have done it on  a few other radios (see the blue outline).The signal from the Mp3 player goes through when it is connected  into the aux.  The radio stations play fine when the Mp3 is disconnected. The problem is that when I am on a radio station and connect the Mp3 I can still hear the station over the Mp3 signal.   There must be another path that is allowing the radio to play even with the MP3 connected.  The connector itself is the type that should disconnect the signal  coming from capacitor #40.  I experimented and disconnected the  #40 cap entirely  so that there is no radio signal coming from that line but I can still hear  the  radio station  albeit at a lower volume.  I am wondering how the station is still getting to the audio amp and if there is anything I can do that will allow  the aux connector to be used without reducing  the radios performance. Thanks for any ideas.


Attached Files Image(s)
       


Messages In This Thread
37-630 Aux Audio - by JohnJarratt - 10-31-2017, 03:04 PM
RE: 37-630 Aux Audio - by JohnJarratt - 11-01-2017, 09:05 AM
RE: 37-630 Aux Audio - by vinzer - 11-01-2017, 10:05 AM
RE: 37-630 Aux Audio - by Radioroslyn - 11-01-2017, 11:03 AM
RE: 37-630 Aux Audio - by JohnJarratt - 11-01-2017, 11:08 AM
RE: 37-630 Aux Audio - by JohnJarratt - 11-01-2017, 06:29 PM



Users browsing this thread:
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Since you stated earlier, you have a console 38-7XX.  They also had a 38-7T (table), and 38-7CS (chairside).  A very nic...GarySP — 01:18 PM
Part numbers to model cross
That I wouldn't know, but sometimes the radio document itself shows one, same as the capacitor cans' etc pinouts.morzh — 12:46 PM
Part numbers to model cross
Thank you morzh, that is exactly what I was looking for. Now , is there some where that shows pinouts for Philco power ...Jim Dutridge — 11:37 AM
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM

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

>