Scored this tool today, I have no idea what time period it was for it thought it was very cool

So does any one know ?

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solid state regs started around 1968. Is there a plug in for the recepticle on the tester, I guess you didn't get a manual. I have never seen one like it. My best guess is it is from around the early to mid 70's probably for testing delco 10SI regs. Other regs could probably be tested with it if there were adapter plugs or if you knew where to connect the leads. Is the recepticle marked with letters or numbers like B G F S E N L? Being so early I would guess it only tests A circuit regs, which were most common then.

 

I see Heath and a model number so you could probably do a web search and locate a manual for it.

 

There was no harness or markings.I bet if I could make one, only if I knew how this thing worked lol

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Looks like it's missing a lot of parts

http://m.ebay.ca/itm/Automotive-Voltage-Regulator-Tester-Heath-Schlumberger-for-GM-Vintage-Shop-Tool-/121782410636?nav=SEARCH

 

contacts look like they fit a 10SI v-reg perfect. Put one on and try it out.

 

I am guessing if you do a continuity test you will find each contact under the lid goes to a terminal in the plug connector. If they do you can test a few different regs from the 70's. Basically any A circuit type.

 

I think, I have a old alt, I can get the reg from and play with it this weekend.
My boss sold all our gm "special tools"
He gave me a few things that he thought would be cool to put in my trunk for shows

 

Let us know what you find out.

 

If you look on pic of post 4, and count the upper most contact as #1 and going clockwise the connections would be 1- field 2-trio 3- stator 4- B+ 5- indicator light 6 - ground. Or so I think. The common 10SI won't use the #3 contact. If the connector plugs are a direct connection to the contacts you can make jumpers and test many regs from that era. Bosch Hitachi Denso Lucas. Have fun.

 

Maybe if you post this in electrical, there will be more knowledge of what you have.