original vintage ribbon microphone
A beautiful vintage mic which will always
be associated with The Beatles. Original features: a brushed alloy body
and adjustable "hinged" rectangular head.
Original period microphone casing
pivoting head for accurate positioning
selectable impedance by
choice of cable sets
Transducer type . . . . . . . . . . .
Frequency response . . . . . . . 70 - 12000 Hz
Polar pattern . . . . . . . . . . . . . . Figure of 8 (modification possible
to single side pick up)
Nominal impedance. . . . . . . . . RBH: 30-50 Ohms
Sensitivity. . .......... . . . . . . . .. not known
Weight w/out cable. . . . . . . . . 240g
Approximate year of manufacture 1959.
This was originally designed as a microphone for recording. The ribbon was
very sensitive and easily damaged by loud singing or blowing into the
microphone. However, close-up vocal use was made possible by inserting felt
"acoustic correction pads" into the head. The felt pad gave a degree of bass
reduction and protection for the ribbon. An additional yellow fabric insert
at the rear of the head altered the pick up characteristic from Figure of 8
to single side making it less susceptible to feedback and more suitable for
Other variations of the RB included:
RB/T with a die cast tubular mounting containing the line transformer and
RB/TS as above but longer to accommodate a sliding on/off switch.
RB/W with an oval die cast mounting containing the transformer and
connection socket with separate ½" tapped hole for stand mounting.
RB/WS as above but with a rotary on/off switch in the stand mounting
RBS alternative impedance choice 30-50 and 1000 Ohms.
RBY alternative impedance choice 30-50 and 10000 Ohms.
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