Added some quick and dirty scans, should be more coming. These have also been made available via Archive.org.
Books:
28 Uses for Junction Transistors
Crystal Diode Circuit Kinks
Electronic Shortcuts for Hobbyists
How To Make A Transistorized Portable Radio
Industrial Uses for Germanium Crystals
Transistor Circuit Handbook for The Hobbyist
Sylvania's Pocketbook of Service Dealer Aids
Misc:
Sylvania Controlog 1976-12
Sylvania Distribution and Construction Products Catalog 78-79
Sylvania Distribution and Construction Products Price List (1978-06)
Sylvania ECG Semiconductors IC Replacement Guide (ECG 212E-1)
Sylvania ECG Semiconductors Industrial MRO Replacement Guide and Catalog (ECG MRO-1)
Sylvania ECG Semiconductors Replacement Guide Supplement (ECG-212D)
Sylvania ECG Semiconductors Replacement Guide Supplement (ECG-212D-3)
Sylvania Electrical Equipment Group Engineered Products Digest 1976-02
Sylvania Entertainment Semi-Conductor Products User Price Schedule (1962-05-01)
Sylvania Lamps for Commercial Uses (Nilco Lamp Works, Inc.)
Sylvania Semiconductor Catalog (1964-01)
Characteristics of Sylvania Receiving Tubes Form 211 4-57
Test Equipment for the Professional by Sylvania Tag (05-86062-1)

Decided it's time to once again post a new note letting everyone know that the site is not dead, though obviously it's been stalled for awhile due to life. I am still here if anyone needs any information, feel free to contact me!


Some recent movements around here, a shelf of receivers....

Added a schematic scan for the R45-1 Chassis, this is used in some 1970-1972-ish models.

I've added a scan of the the Sylvania ECG Semiconductors 1979 Master Replacement Guide. This can be used to convert Sylvania part numbers (and others) to ECG/NTE part numbers. It can also be used to cross reference ECG/NTE part numbers back to other manufacturers, if you're really bored that is. ;)

You can download directly it here: Sylvania ECG Semiconductors 1979 Master Replacement Guide ECG212J_NoOCRRaw.pdf.

It's also available for online viewing at archive.org.

I've added service manuals for the AS-10 and AS-10-1 speakers along with the ones for the R14-2,-3 and T41-1,-2,-3 chassis and Garrard changers with the 11-18254-1,-2,-4,-5,-6 part numbers. These cover a lot of the 1965 console models.