Clear Schematic for 41-255
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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.
Quote:+ 6F6 = (-6X4 + √(6X4^2 - 4(6C5)(6K7)) / 2(6C5)
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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.ph...year-book/
Hope this helps! Take care and BE HEALTHY! Gary
"Don't pity the dead, pity the living, above all, those living without love."
Professor Albus Dumbledore
Gary - Westland Michigan
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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.
Quote:+ 6F6 = (-6X4 + √(6X4^2 - 4(6C5)(6K7)) / 2(6C5)
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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.
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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.
Quote:+ 6F6 = (-6X4 + √(6X4^2 - 4(6C5)(6K7)) / 2(6C5)
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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
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
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I have PhotoShop and will try it. Will let you know. Thank you for your response.
Quote:+ 6F6 = (-6X4 + √(6X4^2 - 4(6C5)(6K7)) / 2(6C5)
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Hello Ross,
Yes, I have had good luck with using my Photoshop in the past to improve schematics and other documents !.
Sincerely Richard
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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.
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/
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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.
Quote:+ 6F6 = (-6X4 + √(6X4^2 - 4(6C5)(6K7)) / 2(6C5)
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