HI.

The .01's are just bypass caps. they can be .001's, even .1 in some
instances. In short - buy either the .001s or .01s. Which ever you need.
Mouser has many many different types of each.

The two unmarked diodes are 1n4148 or 1n914 - both will work. Thanks for
bringing that to my attention.. The ZENER near that is optional and only if
you wish to regulate the async pulse out amplitude.

- P



sduck409 wrote:

> Two for now. I'm doing tiny bits of this project at a time for now.
>
> My engine board says REV 1.4
>
> 1. There are two unmarked diodes to the right of the "to jm3" section
> - what type are these supposed to be?
>
> 2. A more general question - is the BOM that's available on the BCM
> site current and up to date, and actually for the pcb kit I bought
> from them recently? I'm seeing some large discrepancies. Most of the
> resistor numbers (quantities) are off by a few according to the pcb.
> And I just started on the caps - the BOM says 21 .01 caps, which I
> dutifully bought from mouser, but now I've only found spots for 4 of
> them. And the BOM says to buy only one 0.1 cap, but there are spaces
> for at least 12 of them. And a quick look at what else I have reveals
> more of the same discrepancies.
>
> I would assume that I should go with what the pcb asks for, and now
> that I know the situation, it's not a problem that's hard to fix, but
> I'm worried - is that the right assumption? I'm not an electrical
> engineer, and have very limited skills at interpreting a schematic, so
> I'd like to make sure I'm putting the right parts in the right places
> the first time around.
>
> Thanks for a pointer in the right direction about this!
>
> Steve Drake
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> Yahoo! Groups Links
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