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Majestic (Grigsby-Grunow) Model 55 'Duette' Mantel Radio (1933)
...as different from ordinary radios as sunshine is from rain.
Grigsby-Grunow's model 55, known as the
Duette, was one of their series of "smart set"
models for 1934. It was introduced during
the summer or early fall of 1933 and initially
listed for $35.50. On the whole, the 1934 line
represented a novel direction for Grigsby-
Grunow in that the models were smaller and
less expensive than their previous fare.
"5-tube receiver giving 8-tube performance,
providing dual range. !st: 535 to 1550kc.
2nd: 1480 to 4400kc. Has automatic volume
control, illuminated dial. Receives police,
aircraft, amateur, commercial and marine
calls as well as the regular broadcast band.
Cabinet is of lacewood, top and bottom has
ebony finish, and aluminum grille design"
The 5-tube model 55 has tube line-up: 6A7S
(mixer/LO), 6F7S (IF amp pentode/1st-AF
triode), 6B7S (2nd IF amp pentode/AVC/2nd
detector), 42 (AF output) & 80 (rectifier).
Through their use of three spray-shielded
"duo" type tubes, Grigsby-Grunow claimed
8-tube performance for this model. The
schematic for the type 500 chassis used may
be found
here, courtesy of NostalgiaAir.
"From its piano-finish ebonized top and lacewood front, to its polished metal grille, it's as different from ordinary radios as sunshine is from rain.
Performance to match! Five tubes equal
eight regular tubes - because Majestic alone uses Duo-Valve Self-Shielded types. Receives police, commercial, marine,
airplane and amateur calls, as well as regular broadcasts. Has automatic volume control. Power, selectivity and tone are extraordinary. Its name is
Duette"
..captivating lacewood cabinet with ebonized and metal trim. Same chassis as the Studio.
Majestic Model 55 'Duette' Table Radio (1933)