> On Sep 7, 2016, at 3:20 PM, Steven M Jones <classic...@crash.com> wrote:
>
> On 09/07/16 05:02, Noel Chiappa wrote:
>>
>> The other thing that makes no sense is that the KDJ11-B (M8190) has all that
>> extra circuitry on it to support PMI, etc - all of which is unused in the
>> 11/73 application! Why not just plug in a (presumably cheaper) M8192?
>
> In Marketing-land, the VAXstation II RC, with epoxy in the
> factory-unused slots, makes sense...
Not just marketing. Reusing an existing module that does more than is needed
may well be the most economical option. You balance higher per-unit cost
against much lower engineering investment. If you build a million widgets,
that's probably the wrong way to go; but if it's only a few thousand it may
make perfectly good sense.
paul
