08-02-2025, 07:43 PM
As I mentioned, the radio is dead silent. Here's the schematic:
[Image: https://www.dropbox.com/scl/fi/73ru5p7sl...jlsj&raw=1]
I took some voltage measurements and all the readings were nominal with the exceptions of the 1S5 pin 4 at 0v instead of 12v and the 3S4 Pin 3 grid at -6v instead of -1.3v.
[Image: https://www.dropbox.com/scl/fi/t0cr9bvjk...xb71&raw=1]
The 3.3Meg, 470k, and 1.5Meg resisters were all in spec and the #18 .01uF and 0.005 uF caps were replaced. The 820 ohm resistor was high at 1.2k so I'll change that out would not think that's the problem.
(also.. 0.2v of audio signal on the grid of the 3S4 yielded no sound)
My next step is to check my recapping to be sure all are connected correctly and nothing is missing.
[Image: https://www.dropbox.com/scl/fi/73ru5p7sl...jlsj&raw=1]
I took some voltage measurements and all the readings were nominal with the exceptions of the 1S5 pin 4 at 0v instead of 12v and the 3S4 Pin 3 grid at -6v instead of -1.3v.
[Image: https://www.dropbox.com/scl/fi/t0cr9bvjk...xb71&raw=1]
The 3.3Meg, 470k, and 1.5Meg resisters were all in spec and the #18 .01uF and 0.005 uF caps were replaced. The 820 ohm resistor was high at 1.2k so I'll change that out would not think that's the problem.
(also.. 0.2v of audio signal on the grid of the 3S4 yielded no sound)
My next step is to check my recapping to be sure all are connected correctly and nothing is missing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
