Test of DIY-WB

[rr]

The item D3 is a uni-directional diode. I also don't think that
this is mentioned:

    1. unless noted all resistors are 1/4 w.
    2. unless noted all resistors are 5% tolerance.

BobR.

Len Sabatine wrote:

>    Referring to the bill of materials I have a question regarding
>    Item 12 , D3 , 1.5KE- 33A.   Is part Bi or Unidirectional ?
>    Len
>
> >Had a chance to do some testing yesterday. Swapped out
> >the perf-board prototype for the PCB version of the WB.
> >Left the same sensor in the exhaust. Looking over the
> >data logs it looks like the data between the two is the
> >same (perf vs pcb).
> >
> >This is good. It looks like I didn't miss any traces! <g>.
> >Once some more are built I am hoping that they can be
> >compared to some commercial units or cal gas. If anyone
> >can do this it would be a good thing.
> >
> >Bruce Roe is working on a couple of add-ons for the
> >DIY-WB. One being an LED bar-graph display. This will
> >be nice for those that aren't data logging. Also some
> >stuff to convert the WB signal into something usable
> >for the NB ECM input.
> >
> >We'll release schematics of these and with enough interest
> >may be making PCBs. As these won't require a lot of wiring
> >it will be easy to manually wire also.
> >
> >BobR.
> >----------------------------------------------------------------------------
>

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