Clear Schematic for 41-255 - Printable Version
+- The PHILCO Phorum (https://philcoradio.com/phorum)
+-- Forum: Philco Radio Discussions (https://philcoradio.com/phorum/forumdisplay.php?fid=5)
+--- Forum: Philco Electronic Restoration (https://philcoradio.com/phorum/forumdisplay.php?fid=8)
+--- Thread: Clear Schematic for 41-255 (/showthread.php?tid=25241)
+- The PHILCO Phorum (https://philcoradio.com/phorum)
+-- Forum: Philco Radio Discussions (https://philcoradio.com/phorum/forumdisplay.php?fid=5)
+--- Forum: Philco Electronic Restoration (https://philcoradio.com/phorum/forumdisplay.php?fid=8)
+--- Thread: Clear Schematic for 41-255 (/showthread.php?tid=25241)
Pages:
1
2
Clear Schematic for 41-255 - RossH - 09-13-2024
I'm in need of a clear schematic for my 41-255. I have exhausted all my links for one (Rider, Beitman, 1941 Philco Yearbook, Radio Museum, and Nostalgia Air). It appears the Philco Repair Bench is defunct. Does any one have a clearly legible schematic?
Thank you.
RE: Clear Schematic for 41-255 - GarySP - 09-13-2024
Welcome to the Phorum, RossH! The schematic you are looking for is in the Philco Radio Library, service info, 1941 yearbook.
https://philcoradio.com/library/index.php/service-info/philco-1941-rms-year-book/
Hope this helps! Take care and BE HEALTHY! Gary
RE: Clear Schematic for 41-255 - RossH - 09-13-2024
Thank you, Gary. This is the same one I have and is largely unreadable in the small print. I was hoping to find a first generation scan, but may be relegated to purchasing an original 1941 Yearbook, provided they're any better. Thank you again for responding.
RE: Clear Schematic for 41-255 - RodB - 09-13-2024
You can find it on page 98, 1941 Beitman here
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.worldradiohistory.com/Archive-Rider/BEITMAN-SUPREME/Beitman-1941.pdf&ved=2ahUKEwiGmIHvqsGIAxWsl4kEHR1vBEQQFnoECBYQAQ&usg=AOvVaw1xD3TUX-Brsk4xxoMdhUwl
RE: Clear Schematic for 41-255 - klondike98 - 09-13-2024
Ross
The link that Gary sent you leads to a pdf file that can be downloaded to a PC and then viewed at very large sizes with a pdf reader like adobe acrobat reader.
RE: Clear Schematic for 41-255 - RossH - 09-13-2024
Yes, I have the Beitmans, Rider, but they are unreadable in the finer print, even at up to 400 magnification. I have found numerous copies and they're all several generations removed of copies and scans of the original. I was hoping for a clean scan of the schematic out of the 1941 Yearbook, provided the original is good.
RE: Clear Schematic for 41-255 - Chas - 09-14-2024
This is a page extraction of Riders PDF, original scanner unknown. If this is good enough, fine. If not I have the original Riders page and can scan at 1200 dpi which would yield a 15mb file, or scan to such a file size limited to my email client.
I do agree, there are a lot of fine lines that are pointers but also mixed with wiring in the diagrammatic representations.
I may have a 1941 Philco yearbook, but cannot put my hands on it. If I do it may be printed at a higher resolution than the Riders original print, dunno. If it is that would be the most resolve of any publication.
Advise to Phorum I will be notified of your response.
If I scan I will input as a color file and then alter contrast/brightness to enhance "missing" line yet, try to maintain resolution in the text. Followed by conversion to B & W (two bit) file for best compression by the PDF creator (Gimp)...
Try importing the file provided into a photo processor and determine if can be enhanced. It appears to be RGB
GL
Chas
RE: Clear Schematic for 41-255 - RossH - 09-14-2024
I have PhotoShop and will try it. Will let you know. Thank you for your response.
RE: Clear Schematic for 41-255 - radiorich - 09-14-2024
Hello Ross,
Yes, I have had good luck with using my Photoshop in the past to improve schematics and other documents !.
Sincerely Richard
RE: Clear Schematic for 41-255 - DaleHCook - 09-14-2024
Ross -
I have an original 1941 Yearbook, but it will be at least a few days before I can get it out of storage and make a high-res scan.
RE: Clear Schematic for 41-255 - RossH - 09-14-2024
Thank you, Dale. Please take your time. I tried cleaning up a scan in PhotoShop and it helped a little, but after 1.5 hrs I gave up.
Again, thank you very much.
RE: Clear Schematic for 41-255 - klondike98 - 09-17-2024
The scan from the Philco library was directly from a 1941 Yearbook. Not sure what is going on if you can't read it. I downloaded it and include it as an attachment here. I can open it in Adobe and read it clearly at 150% on my PC. Maybe this will work.
RE: Clear Schematic for 41-255 - RossH - 09-17-2024
Thank you for scanning it, but this for the 220 and 225. I need the one for 250 and 255. The one I have, which is many generations away from the original, is on pages 72 and 73.
RE: Clear Schematic for 41-255 - morzh - 09-17-2024
I have just gone to the link Gary provided in #2, the 1941 yearbook, and I do not see any whatsoever small print that I would have trouble reading. The sch is also fairly good.
RE: Clear Schematic for 41-255 - rfeenstra - 09-17-2024
Ditto. Perfectly readable here. Monitor or computer problems?!