Topic: Help for EMI Marine Instruments

Good day all!

I am reaching out to the group because I am at a loss in my quest for information about the instruments installed on my boat.  I have a sounder, speedometer and an accelerometer (a very cool gadget for the racing set) that probably were original to the boat (1976).  The senders pass through a blue box comprised of very well made circuit boards and transistors (no silicon chips here!) before passing on to the guages on deck.  The system still works but needs a bit of love and I want to find the manufacturer in the hopes of finding manuals etc.

Also, I am in the process of moving the box to the other side of the boat and have discovered that it has an empty slot for an anemometer.  Being obsessed with all these vintage toys, I would LOVE to get my hands on one of these so that I can have a 'complete' system. 

If you know something about these old instruments please let me know.

Many thanks!

Christopher