2. Full color, high resolution photos of the chassis and each PC board (excluding PTO) with each part identified. Sized to print out on 8.5" x 11" pages, or may be enlarged on screen for a closer look.  A total of 31 photos in PDF.

3. Never before published schematic and other information about the Passband Tuner. 

4. R-4B Data based on Version 050776910501 or [05/07069 s/n 10501 +]  Two additional schematics only (7000 and 8000) for earlier versions are included.

5. T-4XB Data based on Version 8126916159 or [08/12/69 s/n 16159 +]  One additional schematic only (13749) for the earlier version is included.

6. Full high-resolution PDFs of Original Manuals for the R-4B and T-4XB. A total of 86 pages in PDF.

7. Miscellaneous additional files, Errata sheets and Alignment pages.  A total of 122 pages in PDF.

All files are in Adobe Portable Document Format, and are readable on Windows and most non-Windows platforms, (including MAC OS 9 and OS X,) with the appropriate free reader from Adobe.

The files are available for download for $25.  A CD can be provided for an additional $5 to US addresses ONLY.   Postage charges to other countries on request.  PayPal ( k4oah@mindspring.com ), cash, check or MO to:

Garey Barrell, K4OAH
2738 Kingston Hwy SE
Rome, GA  30161-9154

Every effort has been made to ensure the accuracy of the drawings and text included on this CD. Corrections and/or suggestions for additions are welcome.