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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



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