01-13-2025, 06:05 PM
Thank you for the thorough answer and explaination!
The radio sticker on the inside of the cabinet states 7J7, seems like it's likely that someone put a different chassis in the cabinet. I was wrong saying that the radio had a 6K8 installed, it has a 6K7 installed. Would performance be better if I installed a 7j7, or would the difference be slight?
I did thoroughly go through the amplifier section replacing the resistors and capacitors since the values of the resistors had drifted more than 20%. To compensate for a pm speaker I installed a 1k ohm resister and bumped the second capacitor to 47K'. Also added bluetooth but I injected the signal to the volume control and ground. Would be interested in how you would connect.
So Philco didn't release a schematic showing the 6k7 installed instead of the 7j7?
The radio sticker on the inside of the cabinet states 7J7, seems like it's likely that someone put a different chassis in the cabinet. I was wrong saying that the radio had a 6K8 installed, it has a 6K7 installed. Would performance be better if I installed a 7j7, or would the difference be slight?
I did thoroughly go through the amplifier section replacing the resistors and capacitors since the values of the resistors had drifted more than 20%. To compensate for a pm speaker I installed a 1k ohm resister and bumped the second capacitor to 47K'. Also added bluetooth but I injected the signal to the volume control and ground. Would be interested in how you would connect.
So Philco didn't release a schematic showing the 6k7 installed instead of the 7j7?
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
