Avionics & other high-reliability teardowns

Reverse-engineering cheap eBay finds

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  • Audio Signal Discriminator

    Don Straney11/21/2023 at 04:10 0 comments

    Added BAE Systems Audio Signal Discriminator, whose circuitry is simple but whose workings are a total mystery to me.  Any insights or outside knowledge welcome here in decoding what this is supposed to do.

  • Elliott Nautical Miles Indicator

    Don Straney10/31/2023 at 02:52 0 comments

    Added the Elliott Air Nautical Miles Indicator: this is one of the very occasional convenient devices where someone else (the Le Labo De Michel youtube channel) has already done the hard work of figuring out how it works!  The photos are mostly there for anyone wanting a better static, high-resolution view than can be done in a video.

  • Raytheon UHF receiver

    Don Straney10/07/2023 at 20:10 0 comments

    Added an entry for the (existing) Raytheon UHF receiver writeup; made the title a bit more general as there's going to be more future material that falls outside the strict definition of aircraft electronics, but is similar in spirit.

  • Voice Warning Generator

    Don Straney10/03/2023 at 20:37 0 comments

    Added the McDonnell Douglas Voice Warning Generator from an F-4; hoping to look inside the hybrids at some point.

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