08-07-2023, 04:48 PM
Hi Bridkarl,
Sorry, I have been running behind you. I put the statement "see next diagram", saved it, then created the 2nd diagram. You may have viewed it in the interim. Look at the post again; it should be there. Please note that my numbering does not correspond to your numbering of a terminal strip.
Does it still hum?
Sure, feel free to use the diagram. Please credit Philco Phorum, modified by MrFixr55 in your video if you use the diagrams. They are my cutouts, mod and markup of the Philco diagram.
The one interesting thing is the 12uF (#62) cap in the set that still has the 84 is that the + and - leads are reversed. Considering the blue ends of that cap, I wonder if it was restuffed and they put the paper tube on in the wrong direction. If polarity is actually reversed, it will go off like a firecracker! I speak from experience.
Given the expense and scarcity of power transformers, I think that if you can't find an 84, you can use a 6X5. This is a somewhat more available tube, as it was used in some HiFis as well as car radios. See diagram below, from RadioMuseum:
[attachment=28959] There is a 9 pin version (I have to find the number) that will also work, as it was the rectifier used in 1950s HiFi and many German radios.
Sorry, I have been running behind you. I put the statement "see next diagram", saved it, then created the 2nd diagram. You may have viewed it in the interim. Look at the post again; it should be there. Please note that my numbering does not correspond to your numbering of a terminal strip.
Does it still hum?
Sure, feel free to use the diagram. Please credit Philco Phorum, modified by MrFixr55 in your video if you use the diagrams. They are my cutouts, mod and markup of the Philco diagram.
The one interesting thing is the 12uF (#62) cap in the set that still has the 84 is that the + and - leads are reversed. Considering the blue ends of that cap, I wonder if it was restuffed and they put the paper tube on in the wrong direction. If polarity is actually reversed, it will go off like a firecracker! I speak from experience.
Given the expense and scarcity of power transformers, I think that if you can't find an 84, you can use a 6X5. This is a somewhat more available tube, as it was used in some HiFis as well as car radios. See diagram below, from RadioMuseum:
[attachment=28959] There is a 9 pin version (I have to find the number) that will also work, as it was the rectifier used in 1950s HiFi and many German radios.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
Best Regards,
MrFixr55
