Re: Attic find: NOS Sun Super Tach and sender unit!
 

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.

Re: Attic find: NOS Sun Super Tach and sender unit!
 

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.

https://www.yenko.net/ubbthreads/imag...mlins/wink.gifVerne

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.

Re: Attic find: NOS Sun Super Tach and sender unit!
 

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

Stay tuned!

Re: Attic find: NOS Sun Super Tach and sender unit!
 

[ 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.

https://www.yenko.net/ubbthreads/imag...mlins/wink.gifVerne

[/ 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.

Re: Attic find: NOS Sun Super Tach and sender unit!
 

Don't make me cry Steve........ https://www.yenko.net/ubbthreads/imag...lins/frown.gif

Re: Attic find: NOS Sun Super Tach and sender unit!
 

OK, here's the story. Mine are SST 90's. They also made an SST 70 which was the 7K version. Both are the early Super Tachs with the 270° needle sweep. The easiest way to tell is to remove the tach head from the cup and look at the back of the unit. If it has a black bakelite back and a red metal tag on the bottom, it requires a transmitter. In fact, that's what the tag says........ "requires an EB-9A transmitter", or something to that effect. I'll try to post some photos shortly if this stinkin' computer doesn't crash again!

Steve,
For now, the unit in your pictures is the later transistorized style and DOES NOT require a transmitter. This may also explain the difference between the Blue stripe and the Green stripe. https://www.yenko.net/ubbthreads/imag...lins/dunno.gif
(Both mine have green stripes.)

Re: Attic find: NOS Sun Super Tach and sender unit!
 

[ 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...........

Re: Attic find: NOS Sun Super Tach and sender unit!
 

Here's the face.

Re: Attic find: NOS Sun Super Tach and sender unit!
 

And the back.

Re: Attic find: NOS Sun Super Tach and sender unit!
 

The pair.