London Banter - View Single Post - Last days of the 172s on the electrified GOBLIN

[email protected] · January 26th 18, 10:32 PM posted to uk.transport.london

In article , (Roland Perry)
wrote:

In message , at 15:34:23 on Fri, 26 Jan
2018, remarked:
You can still buy

a subset of

chips designed in the 70s if you so desi

Hence stories about NASA having to scour eBay for some parts need for
maintaining legacy equipment.

NASA tends not to use off the shelf parts.

The ones in question are, otherwise they'd not be on eBay [as a result
of someone breaking up some old equipment and selling whatever they can
dis-assemble as spares].

Often they are things as boring as specific versions of a generic
processor or memory chip, which come in thousands of different
variants.

Be that as it may, I doubt a GPRS radio used such obscure parts that they
were unavailable a decade later.

Everyone familiar with the specific project has told you otherwise.

The RETB radios weren't GPRS for a start.

--
Colin Rosenstiel