[time-nuts] OT - DC-10 gyros
Bill Ezell
wje at quackers.net
Thu Mar 28 11:18:41 UTC 2013
It's almost certainly part of the flight stability / autopilot system,
as suggested privately by another time-nut.
The gyros spin up nicely and run quietly, so sounds like the bearings
are fine.
I was using an old Yamaha amplifier I had around for the 400Hz drive. I
think I'm going to go the audio amp route. The biggest problem I'm
having with replacing it is that I haven't found a small amp yet that
has enough output voltage. I'm going to breadboard up something tonight
- simple phase-shift oscillator driving a pair of FETs in class B
configuration with a low-pass filter to clean things up. It actually
doesn't have to be all that clean. The gyros are electromechanical
devices after all, they're just little split-phase AC motors.
As for what I'm going to do with it, why, the same thing we do with our
time and frequency related projects - play with it. :) My goal is to get
the electronics package fully functional. Fortunately, everything is
analog using transistors you can actually see and quad 741 op-amps in
real dip packages, and even better, only double-sided pc boards.
On 03/27/2013 11:16 PM, time-nuts-request at febo.com wrote:
> Is this part of an HSI (horizontal situation indicator), ADI (attitude
> director indicator), INS (inertial navigation system), or autopilot? Are
> the bearings dust?
>
> Sounds like fun to play with though. What do you plan to do with it?
--
Bill Ezell
----
They said 'Windows or better'
so I used Linux.
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