🚀 go-pugleaf

Alan W. Frame <alan.frame@acm.org> wrote:

> Rebecca and Rowland <real-address-in-sig@flurbletigibbet.rhubarb.foobar>
> wrote:
> > Alan W. Frame <alan.frame@acm.org> wrote:
> > [snip]
> > > Or a rubber.
> > > - the little ones on the end of pencils are good, but the gritty
> > > ones for rubbing out ink are better. :-)
> > 
> > Hmm.  I wouldn't use anything that was even slightly abrasive sounding
> > on plated connectors.  The gold plating is typically 0.3 - 2.5 microns
> > thick; not hard to scrape through.
> 
> True, but I don't *think* the edge connector for a 16K[1] ZX81
> ram-pack was gold-plated.... :-)

I think they are - I don't have mine with me at the moment, but I do
seem to recall gold-plating on the RAM pack socket *and* the ZX81's edge
connector.

I recall a very strongly-worded letter to one of the PC magazines back
in 1981 dealing with this very point - one of the magazine's writers
suggested cleaning the ZX81's edge connector with a bit of emery paper,
and got shot down in flames the following issue.

> rgds, Alan
> [1] 50 quid for 16*Kb*  - BWWWWAAAAAHHHHAAAA!

I seem to have acquired mine somewhat cheaper than that...

Rowland.

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