Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 46-480 Electronic Restoration
#86

I haven't posted the schematic in a long time. At long last, I am done with it. I've got two versions I will upload. The first version I've called Rev 0. In this revision, all I have done is digitize the original Philco schematic and make the necessary edits to reflect production run 9 (since that's the production run I have). This is also the final production run, so it's probably a good version of the schematic to upload for others to use, so that they can start from here. 

The second version of the file I've called Rev 1. In this revision, I've added a polarized plug, moved the on-off switch to the live side of the 117 VAC primary circuit, and inserted a 1A fuse. I've also updated the values of a few of the capacitors to reflect the closest replacement values I could get (0.47 μF for C102 instead of 0.5 μF, as an example).

I've denoted the revision in the file name, as well as in the title block of the drawing. I also added revision blocks, to keep a running list of all updates to the drawing.

One final detail which I included was the wafer switch detail. I had to recreate it from scratch since this detail was blurry on the original Philco schematic.


Attached Files
.pdf Philco 46-480 Schematic Rev 1.pdf Size: 392.72 KB  Downloads: 67
.pdf Philco 46-480 Schematic Rev 0.pdf Size: 362.25 KB  Downloads: 61

Joseph

Philco 46-480
Philco 49-906


Messages In This Thread
RE: Philco 46-480 Electronic Restoration - by jrblasde - 02-02-2025, 07:10 PM
462ron - by 462ron - 02-25-2025, 08:24 AM
462ron - by 462ron - 04-09-2025, 07:07 AM
462ron - by 462ron - 04-09-2025, 08:08 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
Hello Rod,  Honestly I am not sure what you mean by B+ on the schematic, I am still trying to figure it out as I hadn...osanders0311 — 05:56 PM
Philco 46-1209 strange behavior
What kind of meter is it? Relative to what is the voltage being measured? Are the AC line filter caps C53A/B hooked up...morzh — 10:47 AM
Philco 42-345 Restoration/Repair
Hi, what I'm seeing on the schematic is one wire from the output transformer goes to B+ and the other goes to the 7B5 pl...RodB — 10:42 AM
schematics
The Philco Library is great for Philcos.  Great source of info. Philco Libraryslford310 — 09:59 AM
schematics
Hello MSENO, Welcome to the Philco forum and here is the schematic for that Philco! 41-290 Sincerely Richardradiorich — 09:48 AM
Philco 46-1209 strange behavior
I double checked everything around the filter caps and it all seems to be hooked up right... Here are the voltage on ...sq65 — 09:45 AM
schematics
I'm looking for a readable schematic for a 41 290. can anyone help?mseno — 09:33 AM
Rogers Majestic R-646
Since the original schematic was in an old unreadable style, I created a new schematic diagram. Owners of this radio ca...Vlad95 — 11:09 PM
I'm starting to restore a Philco 16X, I need spare parts. Help me find it
Hello Peter, What great project I am looking forward to see your progress with this console !! Sincerely Richardradiorich — 10:20 PM
Philco 42-345 Restoration/Repair
Ok guys, JustRadios has me worried after reading an article about purchasing resistors and I hope that I haven't made a ...osanders0311 — 08:59 PM

[-]
Who's Online
There are currently 856 online users. [Complete List]
» 1 Member(s) | 855 Guest(s)
Avatar

>