[R-390] Twinax Antenna Input 390A

[mikea]

On Tue, May 04, 2004 at 11:06:42PM -0500, jhhaynes@earthlink.net wrote:
> Some of use a little gadget made for IBM-style computer networking.
> Has a Twinax plug on one end, and a transformer in a little plastic
> housing and a modular telephone jack on the housing.  I haven't made
> any measurements, but the things seem to work fine across the HF range.
> 
> I don't know if they are still used.  At one time you could buy them
> from companies that deal in miscellaneous computer stuff, and also
> at surplus stores.

Aso, twinax is still used by various IBM minicomputers (AS/400, S/36,
S/38), and twinax plugs are readily available from large-enough parts
houses -- even here in te Oklahoma City area. 

-- 
Mike Andrews
mikea@mikea.ath.cx
Tired old sysadmin