I have repaired my share of those. You are better off converting a blind
encoder. The amp for auction is 1950 - 1960s technology with about a dozen
tubes.

For all usable parts I'd go no higher than $40 or $50 since it is useless as
AFCS in anything other than the system it was intended for.

Dan, U. S. Air Force, retired

Subject: TTF (trying to flog) Sperry SP20 gyropilot amplifier assembly.
From: tongaloa
Date: 8/8/2003 6:59 PM Central Daylight Time
Message-id:

Thanks for comments.

I pulled info off nomenclature plate.
Looked up pn with google and it crossed to the NIIN
listed as amplifier. It does have a port so you may be right.
35 lb seems a bit much for 'just an altimeter'...

Will cannibalize if that's all it turns out to be. Can use the
sensor for a project...

-Bob