Jara "Krysatec" ("Rat") from Czechia
I send you some my pictures, maybe it will be interesting for you.
AF7 is receiver (audion) with one AF7 tube and with changed coils (first picture)
ECH21 is MW receiver with feedback (left) and 1L33 is crystal radio with two 1L33 audioamplifier (right)
EM83 is MW receiver with double magic eye EM83 (EMM801). (Here I send you also schematic)(last picture)