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

40-190 weak volume
#1

Well, I put this set on the back burner for a week or so. after recapping and replacing all the resistors and cleaning the contacts and controls, i couldn't get her to play. Funny thing was the set did play when I went to get it, I know I heard it!!!! So i figured the tubes must be okay, right???? Wrong! I pulled the tubes and tested them and all but the 7B7 either had shorts or were weak at bestIcon_thumbdown Too bad as they were all Philco tubes, probably the originals as it looks like this set has never had any service. So I ordered a set of NOS tubes from Bob Dobrush. They came today and I installed them. The set is now kind of working, except that the volume is weak. I get stations all over the dial and even on the presets and they are close to where they should be on the scale. Volume and tone controls work except I have to crank the volume up to full to get any thing. i have the set hooked up to my 40-150 antenna for testing. I haven't gone to far into it yet, but the voltages I've checked so far seem to be normal. I don't think it's in the audio as I get very loud static if I work the preset buttons back and forth. I was just wondering if any one here might have any tips or ideas on which way I should start. thanks!
Kevin


Messages In This Thread
40-190 weak volume - by 37silverstreak - 09-11-2013, 09:13 PM
RE: 40-190 weak volume - by jerryhawthorne - 09-12-2013, 06:09 PM
RE: 40-190 weak volume - by Arran - 09-12-2013, 06:50 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Jackson 715 not working
Now that you posted the schematic, I don't know why that Sprague electrolytic cap is across the meter, as it is not indi...MrFixr55 — 05:51 PM
HiFi (Chifi) tube amp build - but my own design.
What may be lacking in the PP Tube amps may be the 2nd harmonics, which some, especially RCA back in the day called &quo...MrFixr55 — 05:32 PM
Jackson 715 not working
Usually in an emission tester, the tube under test is measured as if it were a diode. So, some testers connect all the g...RodB — 04:17 PM
Restoring Philco 37-604C
Yep. F5 is green, D5 is Red. Red is Bad. Green is Clean.morzh — 01:30 PM
Jackson 715 not working
I did start to do that but I stalled out because I could not figure out how the grid and plate get voltage. In this diag...daveone23 — 11:52 AM
Restoring Philco 37-604C
(Insert Homer Simpson "DOPF" Here.) When all fails, look at the can. Took the Ron Ramirez advice, red Caig D...MrFixr55 — 09:23 AM
Philco 91 Speaker Replacement
From your text I am not sure if you intend to use the existing speaker with a resistor instead of the field coil. It wo...morzh — 08:44 AM
Philco 91 Speaker Replacement
My field coil is bad. I am still hoping to find an original, but if I can't I will go with a fitting Philco speaker, 125...dconant — 08:34 AM
Philco 91 Speaker Replacement
As Rod said, it is OK to use a fitting speaker, and then look for an original one. If you buy a Hammond 125 output tr...morzh — 08:15 AM
Philco 91 Speaker Replacement
Yes, I often have to substitute, then keep an eye out for an original. In the meantime, the radio is working and being e...RodB — 08:02 AM

[-]
Who's Online
There are currently 5355 online users. [Complete List]
» 1 Member(s) | 5354 Guest(s)
Avatar

>