05-26-2018, 09:03 AM
April 1.
By now I have the tuner chassis (except the RF unit) almost completely recapped and recarbed.
I turned my attention to the area surrounding (85), the discriminator transformer.
I have removed the interconnect cables as they need to be replaced anyway, and the absence of the power cable will help me work in this area.
Part (85) had two old 2 meg resistors protruding from its underside, and some wires that looked questionable.
[Image: http://www.philcoradio.com/images/phorum...90_037.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_038.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_039.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_040.jpg]
I removed (85) and removed the innards from the shield - no easy task!
[Image: http://www.philcoradio.com/images/phorum...90_041.jpg]
I replaced the red and white wires, resleeved two other wires with new black tubing, and replaced the 2 meg resistors.
[Image: http://www.philcoradio.com/images/phorum...90_042.jpg]
I reinstalled this assembly in the shield...
[Image: http://www.philcoradio.com/images/phorum...90_043.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_044.jpg]
...and reinstalled (85) in the tuner chassis.
By now I have the tuner chassis (except the RF unit) almost completely recapped and recarbed.
I turned my attention to the area surrounding (85), the discriminator transformer.
I have removed the interconnect cables as they need to be replaced anyway, and the absence of the power cable will help me work in this area.
Part (85) had two old 2 meg resistors protruding from its underside, and some wires that looked questionable.
[Image: http://www.philcoradio.com/images/phorum...90_037.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_038.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_039.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_040.jpg]
I removed (85) and removed the innards from the shield - no easy task!
[Image: http://www.philcoradio.com/images/phorum...90_041.jpg]
I replaced the red and white wires, resleeved two other wires with new black tubing, and replaced the 2 meg resistors.
[Image: http://www.philcoradio.com/images/phorum...90_042.jpg]
I reinstalled this assembly in the shield...
[Image: http://www.philcoradio.com/images/phorum...90_043.jpg]
[Image: http://www.philcoradio.com/images/phorum...90_044.jpg]
...and reinstalled (85) in the tuner chassis.
--
Ron Ramirez
Ferdinand IN