Рет қаралды 611
Radio receiver - amateur construction
AM superheterodyne LW, MW, SW
Tubes: 2xECH21, EBL21, AZ11
A TESLA kit marked PN 050 01 was on sale for amateur radio construction.
It contained 4 important coil sets: Input coils assembly, oscillator coils assembly and 2 pieces of intermediate frequency transformers.
The wooden cabinet is from a factory made radio TESLA type Vltava 406U