01-23-2015, 07:51 PM
No doubt about it - the AM oscillator coil is bad.
[Image: http://www.philcoradio.com/images/phorum...88_044.jpg]
The culprit is identified above with a red oval around it.
A closer look:
[Image: http://www.philcoradio.com/images/phorum...88_045.jpg]
The same coil is used for the AM band and for the second band, SW 1 (1.5 to 2.6 mc). It is a single tapped winding, and is open between the top of the coil and the tap. From the tap to the bottom of the coil, it is OK.
I am hoping that I can rewind this coil and make it work again.
Take a look at a partial schematic here (opens in new tab, click to enlarge if necessary depending on your monitor size). It shows the coil in question in red.
[Image: http://www.philcoradio.com/images/phorum...88_044.jpg]
The culprit is identified above with a red oval around it.
A closer look:
[Image: http://www.philcoradio.com/images/phorum...88_045.jpg]
The same coil is used for the AM band and for the second band, SW 1 (1.5 to 2.6 mc). It is a single tapped winding, and is open between the top of the coil and the tap. From the tap to the bottom of the coil, it is OK.
I am hoping that I can rewind this coil and make it work again.
Take a look at a partial schematic here (opens in new tab, click to enlarge if necessary depending on your monitor size). It shows the coil in question in red.
--
Ron Ramirez
Ferdinand IN
