This is a great manual. It was easy to read and very accurate. The size of the manual is small so email is no problem. I highly recommend it. The manual is very hard to find other than this website.
Whilst this is a photo copy, and some of the pages are a little askew, it was all readable and intact. A real bonus finding an old manual for a classic piece of kit that no other site had.
Great stuff.
It was easy done, and I got exactly what I was looking for.
Text excerpt from page 15 (click to view)
Operating The C valve
20
Using the DIGITAL LINK Jack For stereo applications, you can connect two C valves together by using the DIGITAL LINK jack. The DIGITAL LINK jack is a 1/4-inch TRS (TIP, RING, SLEEVE) connector providing a balanced input that is connected directly to the 20 C valve right channel input of the A-to-D converter. Since the C valve�s signal is internally connected to the left A-to-D converter input, the signal from the second C valve�s OUTPUT can be connected the DIGITAL LINK jack of the first unit to feed the right channel of the first C valve�s A-to-D converter. Now use the S/PDIF output on the first C valve as one stereo digital output. The signal from the first C valve (or the left channel) is being carried on the left side of S/PDIF output and the signal from the second C valve (or the right channel) is being carried on the right side of the S/PDIF output. The following diagram shows a typical hook-up for connecting two C valves with one stereo digital output.