New artificial horizon - Sigmatek or R.C. Allen?

Back in 1986, I bought the Sigma Tek Horizon with a warning flag for a
Cherokee I owned.. It was a relatively new model then. And like another
poster here said, I liked the brown/blue colors. It didn't have the
autopilot output, but this didn't matter,m as I had an S-Tec Autopilot. The
gyro worked great for 600 hours, at which time I sold the plane.
"Mike Rapoport" wrote in message
ink.net...
I don't know the differences between brands but I would get one with a
"Vac"
flag.

Mike
MU-2


"David Herman" wrote in message
news:1100238342.986909@yasure...
My plane's artificial horizon - which was overhauled just a few months
ago
at a well-known shop - has headed south again. Since it's got a lot of
hours on it now (and at least one overhaul, maybe more), I suspect it
may
be beyond saving and I could be looking at getting a new one. If I do
need to replace it, I'm wondering about brands. It's a Sigmatek unit.

I see RC Allen and Sigmatek units advertised. Looks like the RC Allen
horizons are a little cheaper, but not much. Anyone have any opinions
on
the relative merits, reliability, advantages, etc. of either brand?
Even
though I want the thing to be reliable, I'm looking at the basic vacuum
models, not the muy-expensive electric ones with extra bells and
whistles.

The plane (and I) are VFR only at this point (vacuum, wet pump), but one
of these days I'd like to work on my instrument rating. But I cosnider
that moot - whatever unit I get needs to be reliable - I'm tired of not
trusting this instrument and want one that should be rock-solid.

So - anybody like (or dislike) either brand?

Thanks.


--
David Herman
N6170T 1965 Cessna 150E
Boeing Field (BFI), Seattle, WA
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