My Airline model 62-144 is just dead and a resistor starts to smoke. I think it is R15 a flex wire wound type. Don't understand why that guy is smoking. Measured only 53v dc at one end of it. Thanks for any help.

:My Airline model 62-144 is just dead and a resistor starts to smoke. I think it is R15 a flex wire wound type. Don't understand why that guy is smoking. Measured only 53v dc at one end of it. Thanks for any help.
:
Check the filter capacitors for shorts or large leakage.

The resistor may be shorting due to a bad capacitor.

::My Airline model 62-144 is just dead and a resistor starts to smoke. I think it is R15 a flex wire wound type. Don't understand why that guy is smoking. Measured only 53v dc at one end of it. Thanks for any help.
::
:Check the filter capacitors for shorts or large leakage.
:
:The resistor may be shorting due to a bad capacitor.
:

I have changed the filters and double checked the installation. There was -53v dc to ground off of this resistor and 210v dc to the center tap of the pwr. x-former.

R-15 is at the most negative side of the power supply. This is kind of a negative filtered power supply. ( For Negative Bias ) Notice both positive sides of the filter capacitors are tied together. C-16 negative end connects to the field coil. C-17 negative end to ground. Check your connections. Also if there is excessive current draw in the B+ line, R-15 would get very hot due to it is the return line to ground.

:R-15 is at the most negative side of the power supply. This is kind of a negative filtered power supply. ( For Negative Bias ) Notice both positive sides of the filter capacitors are tied together. C-16 negative end connects to the field coil. C-17 negative end to ground. Check your connections. Also if there is excessive current draw in the B+ line, R-15 would get very hot due to it is the return line to ground.
:
Hi Warren,
Here are some tests to try to find your short, assuming that you checked the filters and they are in right. (Having the positives connected together and the commons separate is counter intuitive.)
First connect your volt meter across R15. Put in all the tubes except for the rectifier (type 80). Turn it on. It is unlikely that you will get voltage on the meter. If you do write back.
Next pull all the tubes and put in the type 80. You shouln't get much voltage. If you do, the shor should be traceable with an ohm meter.
If you don't get voltage start placing tubes in starting with the 6D6 RF amp, then the 6D6 first detector, then on and on. Wait for each tube to warm up before going on to the next stage. When the voltage goes back to 53 volts turn the set off. The problem is in the circuit of the last tube installed. Often it is the power output stage, the last, since that takes most of the current.
The first step in troubleshooting is centering on the stage where the problem exists.

Best Regards,

Bill