Not necessarily. There were a number of variations and yours could possibly have been a ‘mono’ one.
However, the new 828Mk3 is now a reality, it has taken the whole of the ‘Covid’ period to develop, but it is now done and sounding the same as the original…. well, it should do; it’s using the same circuitry. The original needed a team of girls in the Windsor factory to do all the point-to-point wiring. The new one has clever precision circuit boards that eliminate all the channel wiring except the faders.
it’s sounding good…. and will be announced very soon!