[turretslug]

Certainly, the drive to minimize both number of valves and valve types within individual pieces of equipment seems to have crossed beyond necessity and into compromise- heck, Telefunken devised the triode-hexode and used it in pre-war domestic sets but the "unified line-up" diktat meant that it never appeared in, e.g. the E52, whilst the CR100 did (at least as externally-driven hexode, and apparently at least partially designed by a German emigrant).

It would be interesting to know more of post-war East German technology- it seems that the DDR was regarded as the "sci-tech" leader of the Eastern Bloc and that itself was based rather more on wartime industry remnant than the "reset from scratch" Federal Republic. It's an era/setting that intrigues me- I found out not that long ago that my German emigrant grandfather took his family back for a long holiday in 1938, well aware that this would be a "last chance". A lot of water's been under the bridge since.