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

low volume
#1

I'm having a problem with low volume on a model 41-280. It's been recaped and I'm pretty confident the tubes are good. I'm picking up stations but the volume is very low even turned all the way up. I get nothing when I touch the center post of the vol. control with a screwdriver. I'm beginning to wonder if my problem could be either Icon_lolno with the vol. control or the speaker coil but i'm not sure how to go about testing these components. Any thoughts on this will really be apprecited.
#2

williec Wrote:I'm having a problem with low volume on a model 41-280. It's been recaped and I'm pretty confident the tubes are good. I'm picking up stations but the volume is very low even turned all the way up. I get nothing when I touch the center post of the vol. control with a screwdriver. I'm beginning to wonder if my problem could be either Icon_lolno with the vol. control or the speaker coil but i'm not sure to go about testing these components. Any thoughts on this will really be apprecited.

Check the plate resistors in the audio stages and check the output transformer as well as whatever work you did. An ohm meter is an easy way to check both of these items, the output transformer on a range 1500 ohms or higher, the resistors on the 1 million ohm range if they are 100K or higher. If any are between 10,000 and 100,000 set the meter on the 100,000 ohm range to test them. If you find any suspect resistors I would just replace them, they are too cheap to worry about.
Regards
Arran
#3

Hi Arran, Checking with a trouble light I found I wasn't getting anything at all out of the #2 transformer so I pulled it. Of the 4 wires I notice the white wire is really brittle the other 3 looked ok. I checked both the red/white and blue/green wires together and the needle went almost to zero. don't know if I checked this correctly or not. Can these be repaired or purchased anywhere? Thanks, Bill ps. it's a 32-3483 transformer.
#4

Where was this transformer located? I don't have a parts list handy, was it near the type 84 tube under the chassis. If so then it is a common problem.
Regards
Arran




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 249 made in England
Thanks for the information MrFixr55.   It's tube amplification and not solid state. TOMfklown — 11:27 AM
Philco Model 249 made in England
Well, I’ll be! I learned something.jrblasde — 11:03 AM
Philco Model 249 made in England
Yes, Garrard was well-regarded for its standalones.morzh — 10:48 AM
Philco 46-480 Electronic Restoration
Quite the interesting stories, sir! Somewhat reminds me of my first job out of school (not that I worked in a similar fi...jrblasde — 09:33 AM
Philco model 40-100
Arran, I restored 2 Canadian battery-crank telephones for a friend a while ago, a Northern Electric (Canadian version of...MrFixr55 — 08:04 AM
Road Trip for a Philco 46-480
Beautiful work, a 79 year old radio brought back to life. The first FM radios for me, a little iffy, had some I just cou...Jimradio — 08:01 AM
Philco 46-480 Electronic Restoration
I was a field engineer for a biomedical company for many years. Many was the time that I was driving home from NYC in t...MrFixr55 — 06:40 AM
Philco 46-480 Electronic Restoration
Don't laugh folks, I have not been above taking a chassis into the bathtub (when Ms. Fixr was out of the house), taping ...MrFixr55 — 06:02 AM
Philco model 40-100
Marion; By "newer style" carbon resistors do you mean the molded type with coloured bands rather then the BE...Arran — 01:00 AM
Philco 46-480 Electronic Restoration
hello jrblasde , your radio sounds great well done !! I bought like 20 years ago a Philco 610b that someone had painte...radiorich — 11:50 PM

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

>