[Ron Ramirez]

As it turns out, the answer to my metric nut dilemma was found in one of the clamps holding a large electrolytic capacitor in place.

I removed the screw and nut which tightens the clamp, replaced screw and nut with a 4-40 screw and nut, and used the metric nut from the clamp for the last transistor. Perfect fit. The lockwasher came from my hardware tin.

[Image: http://www.philcoradio.com/images/phorum/STA225_011.jpg]

The electrolytic and clamp are back in place with the new screw and nut:

[Image: http://www.philcoradio.com/images/phorum/STA225_012.jpg]

And a quick frontal shot of the receiver:

[Image: http://www.philcoradio.com/images/phorum/STA225_013.jpg]

The sound is very smooth...through headphones at least.

But there is another problem.

The dial pointer is supposed to turn red when an FM Stereo station is tuned in. It does not. No voltage is getting to that bulb. Which means that FM is only in mono.

...and now I really need that schematic...the service info I have does not include a schematic...