1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Philco 42 380 Hums well but does not know the words
mandh
Member
***
Posts: 73
Threads: 23
Joined: Aug 2008
#2

08-15-2008, 11:12 PM
My guess would be that the power supply electrolytics are gone. The very first thing to do with any old radio is to replace these capacitors to prevent damage to the radio's power transformer and to get the hum issue out of the way. When the caps are bad you are putting pulsating DC out on the power supply lines, thus the hum.
Harv
Find
« Next Oldest | Next Newest »


Messages In This Thread
[No subject] - by mandh - 08-15-2008, 11:12 PM
[No subject] - by David B - 08-15-2008, 11:44 PM
[No subject] - by Texasrocker - 08-16-2008, 01:58 AM
[No subject] - by David B - 08-16-2008, 07:30 AM
[No subject] - by Ron Ramirez - 08-16-2008, 08:38 AM
[No subject] - by David B - 08-16-2008, 06:50 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! GaryGarySP — 06:40 PM
trying to identify this wire type
...and modern wire of the appropriate gauges and insulation V-rating (300V minimum, usually shown right on the wire) is ...morzh — 05:47 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM
trying to identify this wire type
The red wire is rubber covered wire. The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM
trying to identify this wire type
Greetings Phorum members, Hope you can help me identify this type of wire in the photo I have attached.  I am not sure ...georgetownjohn — 01:53 PM
Philco 60 Squealing
All correct shields must be in place, all tubes correct no subs of any kind. Check any soldered, riveted ground conne...Chas — 01:24 PM
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM

[-]
Who's Online
There are currently 4205 online users. [Complete List]
» 3 Member(s) | 4202 Guest(s)
AvatarAvatarAvatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration