Damayante is a nice floor radio with an attractive front panel.
This radio is one of the first Radiomarelli models with tuning dial and
can receive two bands, medium and long waves.
In this model, was used
an indirect 6,3 V heater new tube series.
It’s a
superheterodyne set and is also one of the first radios which works
with a multi-grid converter tube, 6A7.
Diagram
and chassis of this radio are same to the ones of Damayante model.
The upper left knob operates the power switch / volume control while the
right one is for the tuning. The lower left knob (spherical in shape)
has two axial positions and is
used to remove the sound without switching off the radio. Also
the right one spherical knob has two axial positions and operates
the switch band, by pulling toward yourself you select the long
waves band.
Under
the dial you can see a pointer tuning meter which works in series to
the anodic circuit of the IF amplifier tube.
Exists a doubt about the muting switch operating of this radio, so I put
in the bottom of the page three electrical diagrams which I found in
three different books of the age:
In the first diagram there is a mistake and the switch is missing. In the
Damayante diagram the switch is located in series to the sound
speaker coil. In the third diagram the switch is located in series
to the LF signal, between the 75 and 41 tubes.
The published radio, and other two radios that I’ve seen, corresponds
at the second diagram, the one of Damayante.