07-22-2017, 01:39 PM
> Tubes have been checked and I have had put replacements in no change
When it fades out do the tubes stay lit??
Could have an intermittent filament or bad connection at the socket.
Use a second receiver to listen for the local osc @ 455kc above the broken set's dial setting when it's faded out.
This will rule out an intermittent osc coil.
You can use your signal generator to troubleshoot by ejecting a 455kc signal at the ant when faded.
This will tell you if the IF,det,and audio are the issue.
When it fades out do the tubes stay lit??
Could have an intermittent filament or bad connection at the socket.
Use a second receiver to listen for the local osc @ 455kc above the broken set's dial setting when it's faded out.
This will rule out an intermittent osc coil.
You can use your signal generator to troubleshoot by ejecting a 455kc signal at the ant when faded.
This will tell you if the IF,det,and audio are the issue.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
