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

Threaded Mode
50L6GTtube normally run 170 degrees?
Buzz
Senior Member
****
Posts: 360
Threads: 60
Joined: Jan 2013
City: Portland, Oregon
#1

01-24-2013, 10:15 PM
Hi.. I have just finished my first attempt at restoring a Philco PT92. After replacing the capacitors, it fired up (used my newly built dim bulb tester). It picks up stations, but i noticed the 50L6 tube gets very hot. I measured it at 172 degrees. The other tubes are warm, but not too hot to touch. I had an old spare I put in, and it gets hot to. (same temp)
So, what is the normal temp of this tube. By the way , I played the radio over 2 hours, and everything else seemed OK.
Any comments or ideas on this,
thanks, buzz
Find
TA Forbes
Deviate Emeritus
*****
Posts: 2,353
Threads: 92
Joined: May 2010
City: Clayton, NC
#2

01-25-2013, 12:52 AM
Hello, Buzz: I have never measured the temperature of my tubes, but I will say that output tubes like your 50L6 and rectifier tubes both tend to run very hot, as in hot enough to burn you if you touch them.

If the set exhibits no other problems besides trying to shock you (like all AC/DC sets try to do to me), I would not worry about it!
Find
Buzz
Senior Member
****
Posts: 360
Threads: 60
Joined: Jan 2013
City: Portland, Oregon
#3

01-25-2013, 03:02 PM
Ok TA , i wont worry about it. thanks
Find
« Next Oldest | Next Newest »




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
I have taken out the 2nd IF and found a problem or not. I believe the coils are litz wire. There is a very small strand ...dconant — 02:13 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A5...MrFixr55 — 06:48 AM
American Bosch Model 802 auto radio
I think it would come under either American Bosch or United American Bosch. American Bosch made sets for the American We...Arran — 05:53 AM
trying to identify this wire type
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM
trying to identify this wire type
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM
Gilfillan Brothers Car Radio?
Hi everyone,  Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! Gary P.S. Can't get the right color you need? I ...GarySP — 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

[-]
Who's Online
There are currently 7274 online users. [Complete List]
» 1 Member(s) | 7273 Guest(s)
Avatar

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