Attic find: NOS Sun Super Tach and sender unit!

[njsteve]

I was wondering: does anyone know if this tach requires the sender unit? It is the SST-801. I tried googling that model number and all I seem to find are people with the same question and no exact answer. Any tach experts out there?

[JoeG]

Not an expert, but I thought the 700 and lower series needed the sending units and the 800 series were good for conventional and or transitorized/CD ignitions without a sending unit---I think I have a 802 for the CD unit.........

[Verne_Frantz]

Joe's right. The 800 Series was the "electronic" tach, not the "electric" tach. The 800 was the "SuperTach".
Steve, I believe your nos sender was made in '71. The tach you have does not need the sender you have.

Verne

[ORIGLS6]

Come to think of it, the early Super Tachs that required the sending units were only available as 7k and 9K. And, they were green stripe faces weren't they?

Rats, now I gotta run to the garage and dig mine out again!!!!!

[njsteve]

This is one of those connundrums where you need a definite answer. I wouldn't want to hook it up the worng way and fry the unit, or if I sell it I don't want to steer somebody wrong with the incorret advice. I did see an SST-802 unit on ebay that the guy advertized as one of the first Sun tachs to not need a sending unit.

[Verne_Frantz]

Steve,
Unless someone else can satisfy you in the meantime, I can go to an old SUN catalog I have with all the particulars and get back to you tomorrow eve. I don't think any of the "Super Tachs" required a sender, but I can confirm later.

Verne

If you look at the instructions for the sender, it lists model SST-700. That probably means I was wrong about the SST only being the 800 series, but it looks like all 700 series need the sender, as Joe originally said. The other sender you pictured is (I believe a '70). There's even an ink stamp date on the box for one.

[ORIGLS6]

The very early ones did. I'll run out and grab mine and see what the list numbers are.

Stay tuned!

[njsteve]

[ QUOTE ]
Steve,
Unless someone else can satisfy you in the meantime, I can go to an old SUN catalog I have with all the particulars and get back to you tomorrow eve. I don't think any of the "Super Tachs" required a sender, but I can confirm later.

Verne

[/ QUOTE ]

That would be cool! I should have grabbed the old catalogs from the speed shop attic. They still had all their racks of old catalogs and books still in the stands.

[JoeG]

[ QUOTE ]
................... I did see an SST-802 unit on ebay that the guy advertized as one of the first Sun tachs to not need a sending unit.

[/ QUOTE ]

True, but also really the first to work properly with the CD units of the day...........