Hi Scott --
(1) The Audio Sound Lab items are sold on the E____ Site by seller "tubes4pro".
Do a advanced search for his "Completed Auctions", and you will see a ST35 Cap Board with a Time Delay feature built-in. It looks like you have the earlier version of the ST35 Cap Board. I have bought 4 or 5 items from him over the last 5-6 years and they are very nice quality with easy to follow instructions, with pictures.
(2) If you send him a message via the E____ Site, I suggest that you say that you bought an ST-35 from someone and the un-installed Version 1.0 Rev C Cap Board was included, but you don't have hookup instructions. Maybe he will send you the hookup instructions. In the past, he has been good about replacing lost documentation.