03-31-2016, 11:03 AM
Welcome to the Phorum!
Here's a schematic that Ron has marked up (found on the online schematics on philcoradio.com) that should be more accurate and clearer than the Riders copy you have. Hope it helps. Other's who have actually worked on this version of 90 may chime in as well.
Here's a schematic that Ron has marked up (found on the online schematics on philcoradio.com) that should be more accurate and clearer than the Riders copy you have. Hope it helps. Other's who have actually worked on this version of 90 may chime in as well.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
