On 3/24/2019 7:15 PM, Brent Hilpert via cctalk wrote:
It was in a surplus store,So I expect it was parts from some larger device.
This was in Vancover about 1990 ish.
  Can't say I bought it, it was a donation, and I
don't know the story of whoever donated it.
 Might have been purchased from the surplus store BCTel used to run, or it may have come
from a former Microtel employee, or who knows.
 Saw a boxed converter-only unit (needed a TV for the display) in a thrift store around
2000, but passed it over.
 (I'm sure everybody else did too).
 I also scrapped a converter-only unit back around 2000 or so.
  
Ben.