
Oscar Vortex Spinner: You Spin Me Right
Round, Baby...
Specs
5" x 4" x 1 7/8" depth
Cost
$ 57 for spinner (without knob)
$ 9 for USB mouse interface
$ 6-19 (approx.) for knob
Total: $ 69-82
Quick Summary
A fast, smooth reproduction spinner with
a heavy "feel", the Vortex was built with frantic Tempest
gameplay in mind.
Description
The Oscar Vortex is closely modeled on
the spinner used in Atari's Tempest arcade game — so closely, in
fact, that it can be used as a direct "drop-in" replacement in original
Tempest machines. It's a dual bearing design, but unlike the SlikStik
Tornado, it doesn't use ball bearings, but rather nylon sleeve bearings
(nylon 642 for the curious). This is in line with the original Tempest
arcade design, which results in smooth, short spin times (about 10 seconds,
compared to 3+ min. with the Tornado).
Installation
Installation of the Vortex is very simple — drill
a hole into the control panel, insert the spinner, screw into place from
underneath, and attach the knob. There are no adjustments needed
and it's ready to go as soon as you attach an encoder. The Vortex has
a fairly large installation footprint (5" x 4" x
1 7/8" deep, almost as big as the Oscar Up/Down spinner),
which makes it a tough fit if your control panel has a lot of controls
or is tight on space. The shaft on the Vortex is adjustable
for use on either metal panels or 3/4" wood panels.
Design
The Vortex is a beautiful design, both
structurally and aesthetically. The welded steel-box structure gives
the spinner amazing rigidity, ensuring that the spinner shaft will always
stay properly aligned. The stylish black oxidized coating provides both
corrosion resistance and that ever elusive "cool" look.
The Vortex uses a steel flywheel instead
of the aluminum flywheel used in the original Tempest spinner. In order
to keep the mass the same as the original spinner, the steel flywheel
is thinner than the original flywheel, but the same diameter.

Tempest Flywheel (top) and Vortex Flywheel (bottom)
The Oscar
Controls web site mentions that since the flywheel weight and the bearing
type are identical to the original Tempest, the feel is identical. I
didn't find this to be the case — while the two spinners are indeed
similar in feel, the Vortex definitely felt "heavier" when spinning,
and had a much stronger sense of mass.
The overall fit and finish of the Vortex
is excellent, with no wobble and a very smooth, quiet spin. It's an excellent
spinner — about the only complaint I have about the Vortex is
that the aluminum reproduction Tempest knob has some sharp edges
and was not as comfortable to use as the original plastic Tempest knob.
Pros
Cons
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