12-31-2013, 11:34 PM
So I worked on the 91 some more last night...
36 tube tests OK...replaced it with another from a working radio anyway...still no dice.
I did find that the primary of the antenna coil was open. Fixed that (a simple matter of a broken wire). Still doesn't work.
I can pass an IF signal through the set just fine now. I did a quick and dirty IF alignment, by ear. Will go back and realign it - the right way, with my oscilloscope - once it's up and running.
I decided not to bother with it tonight. Perhaps tomorrow. I will definitely have to revisit the oscillator coil. And I am still thinking about just converting it to use a 6A7...
36 tube tests OK...replaced it with another from a working radio anyway...still no dice.
I did find that the primary of the antenna coil was open. Fixed that (a simple matter of a broken wire). Still doesn't work.
I can pass an IF signal through the set just fine now. I did a quick and dirty IF alignment, by ear. Will go back and realign it - the right way, with my oscilloscope - once it's up and running.
I decided not to bother with it tonight. Perhaps tomorrow. I will definitely have to revisit the oscillator coil. And I am still thinking about just converting it to use a 6A7...
--
Ron Ramirez
Ferdinand IN
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