Winchester-style coax connectors?

Josh Dersch derschjo at
Thu Dec 1 13:51:37 CST 2016

On Thu, Dec 1, 2016 at 11:47 AM, Paul Koning <paulkoning at> wrote:

> > On Dec 1, 2016, at 2:27 PM, Josh Dersch <derschjo at> wrote:
> >
> > ...
> > The Imlac uses a Winchester connector (14 position) for the display and
> > while they're not as common these days the parts can still be found so I
> > thought I was in the clear, but what I failed to notice is that three of
> > the "pins" (for the X, Y and Blank signals) are actually tiny coaxial
> > connectors that fit within the Winchester housing (i.e. they're the same
> > diameter as a Winchester pin).
> What is a "Winchester connector"?  Do you mean a D-sub connector, i.e.,
> with a trapezoidal shell such as you find on terminal or VGA connectors?
> Those come in a number of widths, with names like DE (for the VGA size), or
> DB (the 25 pin classic RS-232), and so forth.  Often, incorrectly, all are
> called DB.
> Those shells have a variety of choices for pins.  They may be two rows of
> pins (e.g., DB-25), or 3 rows (e.g., DE-15).  You may also find ones that
> have just miniature coax inserts, or a mix of coax and plain pins.  The
> coax inserts are generally larger, such that it takes up much of the height
> of the connector.  I haven't seen coax pins that are the same diameter as
> plain signal pins, that's rather hard to imagine especially for something
> as old as an Imlac.  Examples of mixed pin D-sub connectors are the Sun
> video monitor connectors, with RGB on coax.
>         paul

Like one of these bad-boys, only with 14 connectors rather than 34:

Sorry for not being more specific.  The coax connectors in a 13W3 connector
(for example) are much larger than what I need.

- Josh

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