05-22-2020, 11:02 PM
I'm working on a Model 144B for friend and fellow member Scott D.
Have run into some issues after doing a re-cap and replacing some out of spec resistors.
1. Wave trap was missing. (Spare 44 chassis has been purchased for parts)
2. Radio is deaf as a post, not even static on all bands except very end of upper SW band.
(I have clipped into circuit a wave trap from a 645 chassis, but part numbers are not the same)
I'm going through and checking EVERYTHING.
I found the B'cast band antenna coil had an open.
(Internal spool looks toasted).
I pulled it and reconnected the end that was broken off, and it now measures 40 ohms.
There are no specs on the diagram. Is this anywhere near what it is supposed to ohm out at?
The other coil (outer winding) checks in at 4.7 ohms. (This is coil 8 on the diagram).
I'm still in process of checking all other coils and making sure all connections are as they should be.
Diagram for reference:
Have run into some issues after doing a re-cap and replacing some out of spec resistors.
1. Wave trap was missing. (Spare 44 chassis has been purchased for parts)
2. Radio is deaf as a post, not even static on all bands except very end of upper SW band.
(I have clipped into circuit a wave trap from a 645 chassis, but part numbers are not the same)
I'm going through and checking EVERYTHING.
I found the B'cast band antenna coil had an open.
(Internal spool looks toasted).
I pulled it and reconnected the end that was broken off, and it now measures 40 ohms.
There are no specs on the diagram. Is this anywhere near what it is supposed to ohm out at?
The other coil (outer winding) checks in at 4.7 ohms. (This is coil 8 on the diagram).
I'm still in process of checking all other coils and making sure all connections are as they should be.
Diagram for reference:
Blessings,
Jeff W.
Jonesboro, Arkansas
http://jeffsradios.weebly.com
God loves you as you are, not as you should be, because none of us are as we should be. - Brennan Manning
