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

Model 80 jr resistors getting hot
#18

I’ve measured 165 V through the 16 K resistor I’m coming up with 10.3 mA and 1.7 W. The resistor is a 5 W resistor that I have installed. So I believe it should be OK. However this resistor is still very hot to the touch, And from what I’ve read in the thread most likely it’s because the resistor is smaller in size then original. Everything in the radio seems to be working fine and the performance is good and I’m receiving all stations across the band. The resistor doesn’t show any signs of burning. My plate voltage on the 36 oscillator detector tube is showing right on spec 245 V my screen grid voltage on the 36 oscillator tube is showing a little low 86.7 V. If I go by the Riders schematic it says the screen grid should be 165 V but when I look at the RCA receiving tube data sheet it says Max volts for the screen grid should be 90 V and then when I read that note above in the tread it says it should be somewhere around 80 V. So I’m a little confused. I’m inclined to think everything is fine.


Messages In This Thread
Model 80 jr resistors getting hot - by Xolo100 - 01-02-2021, 12:43 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-02-2021, 01:45 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-02-2021, 05:33 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-02-2021, 07:14 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-02-2021, 07:22 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-02-2021, 09:43 PM
RE: Model 80 jr resistors getting hot - by n1ps - 01-02-2021, 10:35 PM
RE: Model 80 jr resistors getting hot - by RodB - 01-04-2021, 10:38 AM
RE: Model 80 jr resistors getting hot - by RodB - 01-04-2021, 07:30 PM
RE: Model 80 jr resistors getting hot - by Xolo100 - 01-04-2021, 07:56 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-04-2021, 09:42 PM
RE: Model 80 jr resistors getting hot - by morzh - 01-04-2021, 11:33 PM
RE: Model 80 jr resistors getting hot - by morzh - 04-23-2021, 10:39 PM



Users browsing this thread: 4 Guest(s)
[-]
Recent Posts
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
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

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

>