Used to own one. Loved the casual sounding audio. Also the variable dead band.
But it's been about 30 years! That was almost the Bronze Age. Many other cool things have happened since then.

6PK et al:
Yes, flight computers should have the ability to do more with shaping the audio vario, even though a simple LX V3 I have proved it can sound identical to a CA302 in climb mode with no sink tone. To me the 302 became the reference for audio vario understandability around the Industrial Revolution, and still hangs in there.
Audio setup should include dead bands for cruise and climb, waveform, modulation, center frequency, frequency extremes, interruption frequency and percentage for up and down, level adjustment by airspeed, and overall equalisation (like Air-Glide's "bass boost" to make up for a typical small speaker)..
While we're at it, how abut the ability to play back samples? Examples:
Every x minutes someone significant in your life can remind you to drink.
Or at a selectable altitude, that person, Darth Vader, or anyone reminds you to turn on O2, with an "OK, got it" response from the pilot.

Installing 30-year-old electronics in a glider will have maintenance issues.. In the business I'm in, people talk about the sound and feel of "retro" equipment, but tend to forget about the inconvenient stuff. Example: An analog mixing console may sound better than a digital one, but takes six people to lift and doesn't fit in narrow-body aircraft.
Jim