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On 27 Nov 2004 at 20:51, Russ Wolfe wrote: > On Sat, 2004-11-27 at 09:49, Dave Hall wrote: > > With the 2-prong, the indicator light (in the dash instrument cluster) is live > > with ignition, but the earth return is through the bulbs when the flasher unit > > grounds. That's why the flash on the dash is in anti-phase with the turn-signal > > lamps. > > > Looking at the wiring diagrams, for the early T-3's the 3rd terminal was > ground, (#31). If it was a 2 terminal unit, they show the ground through > case of the unit. If it was a 2 terminal unit, they are marked (+) and > (S). Power and Switch respectively. > The 3 terminal one is marked (+), (S), and (31). Sounds like you've got it nailed. This one has 3 terminals labeled: 31, 49a/S, & +49. The wiring diagram is printed on its side and shows the power and ground connections to +49 & 31, while terminal 49a/S connects to the dash lamps and to the outside lamps via the TS switch. The date on the instructions is '71, so it's not as old as it might have been. What's it worth? -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~