04-14-2018, 05:55 PM
Ok, Ready for power up..Brought up slowly and at 110 Volts reading about 700 Ma. Good so far.. B+ present..
NO sound.. So tried the finger on the Grid caps trick The RF tube No Sound Then tried the 1st DeT tube.. SOUND and signals present.. So went back and replaced the 35 RF tube Still no sound.. Rechecked the Antenna coil all good.. So tried the Coil after the RF tube.. Seems like the Primary is open.. So measured B+ on the 35 RF tube Nothing.. Seems like confirmed open...
Now I know for a fact I measured that part of coil and it was fine..Why its open now ???
So now I need a fix.. Can I add resistor in place of the primary and couple the Plate to the other side of coil that's good..If so what values should I use.. Here is partial schematic..
[Image: https://farm1.staticflickr.com/882/26587...45cb_b.jpg]
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NO sound.. So tried the finger on the Grid caps trick The RF tube No Sound Then tried the 1st DeT tube.. SOUND and signals present.. So went back and replaced the 35 RF tube Still no sound.. Rechecked the Antenna coil all good.. So tried the Coil after the RF tube.. Seems like the Primary is open.. So measured B+ on the 35 RF tube Nothing.. Seems like confirmed open...
Now I know for a fact I measured that part of coil and it was fine..Why its open now ???
So now I need a fix.. Can I add resistor in place of the primary and couple the Plate to the other side of coil that's good..If so what values should I use.. Here is partial schematic..
[Image: https://farm1.staticflickr.com/882/26587...45cb_b.jpg]
Skip...
