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Here's the PDFs for the most common RGB Amps.
Some of these also provide S-Video and Composite out.

Analog Devices AD725 (RGB to S-Video and Composite) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Analog%20Devices%20AD725%20RGB%20to%20S-Video%20and%20Composite.pdf)
Analog Devices AD8013 (Triple Video Amplifier) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Analog%20Devices%20AD8013%20Triple%20Video%20Amplifier.pdf)
Analog Devices AD8073 (Three Channel Video Amplifier) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Analog%20Devices%20AD8073%20Three%20Channel%20Video%20Amplifier.pdf)

Fujitsu MB3514 (RGB Encoder Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Fujitsu%20MB3514%20RGB%20Encoder%20Amp.pdf)
Fujitsu MB3516 (RGB Encoder Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Fujitsu%20MB3516%20RGB%20Encoder%20Amp.pdf)

ITRI ES71145 (CXA1145 Equivalent) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/ITRI%20ES71145%20(CXA1145%20Equivalent).pdf)

JRC NJM2267 (Dual Video Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/JRC%20NJM2267%20Dual%20Video%20Amp.pdf)

Sony CXA1145P (RGB Encoder Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Sony%20CXA1145P%20RGB%20Encoder%20Amp.pdf)
Sony CXA1645P (RGB Encoder Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Sony%20CXA1645P%20RGB%20Encoder%20Amp.pdf)
Sony CXA2075M (RGB Encoder Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Sony%20CXA2075M%20RGB%20Encoder%20Amp.pdf)

Texas Instruments THS7314 (Three Channel Video Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Texas%20Instruments%20THS7314%20Three%20Channel%20Video%20Amplifier.pdf)
Texas Instruments THS7360 (Six Channel Video Amp) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Texas%20Instruments%20THS7360%20Six%20Channel%20Video%20Amplifier.pdf)

Toshiba 2SC1815 (NPN Transistor) Can also be used for Sync Amp (C-Sync/Video) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Toshiba%202SC1815%20NPN%20Transistor.pdf)


For sync separation aka sync stripper: (they all uses same pinout)
Texas Instruments LM1881 (Sync Separator) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Texas%20Instruments%20LM1881%20Sync%20Separator.pdf)
National Semiconductor LM1881 (Sync Separator) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/National%20Semiconductor%20LM1881%20Sync%20Separator.pdf)
Intersil EL1881 (Sync Separator) (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/Intersil%20EL1881%20Sync%20Separator.pdf)

All Above: RAR (http://www.retrosampling.se/Temp/RGB%20Amp%20PDF/RGB%20Amps%20PDF.rar)