Bill Jonesi (an expert in old time rally instruments) has identified the "black box" as a Sheetz-Gull rally computer . . . sometimes called a "null read-out" device, as the objective is to keep the two second hands aligned, to indicate that the driver is on pace.

Now that we know the name of the device, it should be a bit easier to do some research into the details. We also understand the logo, with the "S" and the seagull!!

Here is a thread from a discussion in 2000, regarding the Sheetz-Gull --

http://sports.groups.yahoo.com/group/SCCARoadRally/message/1508?threaded=1&var=1&p=2

I will add more to this thread, as I learn more about these devices.

Jeff

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: Man oh man . . . you never know what you are going to explore
: and discover in a given day!!

: Yesterday, I had never heard of the Heuer / Robo Rally Computer,
: and today I received photos from an owner (shown below) and
: learned some of the basics. As you might expect, The Source of
: All Knowledge here in the US ("SOAK-US") was able to
: provide me with a lot of information, so my questions now are:
: does anyone here own one of these big blue boxes (the Heuer /
: Robo Rally Computer)? might you know someone who owns one? does
: anyone have a copy of the instructions or schematics? what might
: one of these be worth? what about the smaller black box with the
: Sebring attached . . . Any of these out there? And here are two
: pieces of trivia for you: "Robo" does not mean
: "robot"; rather, it stands for Roger Bohl (shown below
: in his Mustang), who helped Heuer develop this. The Sebring
: attached to the black box (shown in the fourth photo) is
: amazing: The little black box is attached to the larger blue box
: (by the cable shown), and the minute hand and primary second
: hand of the Sebring are powered by the Sebring movement, just
: like any other Sebring. However, the thinner split second hand
: is independent of the Sebring movement and is powered by a motor
: in the black box, with the speed of this motor (and the hand's
: movement) determined by the speed of the car . . . yes, this is
: strangest thing I have learned in 13 years of collecting the
: dashboard timers and is absolutely true!! There's a great story
: to be writen here, but I need more samples, more information and
: -- above all -- the Instructions!!

: Thanks for any information!!

: Jeff

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